CPMC-1553R
User’s Guide
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Copyright Thales Computers 1987 - 2002
Thales Computers reserves the right to make changes further notice to any products herein, Thales Computers makes no warranty, representation or
guarantee regarding the suitability of its products for any particular purpose, nor does Thales Computers assume any liability arising out of the
application or user of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental
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claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated
with such unintended or unauthorized use, even if such claim alleges that Thales Computers was negligent regarding the design or manufacture of the
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Use, duplication or disclosure by the contractor or the Government is subject to restrictions as set forth in subdivision (b) (3)(ii) of the Rights in Technical
Data and Computer Software clause 52.227-7013.
No communication, reproduction or use without prior written approval from Thales Computers
Your comments on this manual will be welcome.
A sheet is appended for you to submit your remarks.
Table of Contents
Chapter 1 Introduction................................................................................................................................1-1
1.1 Manual Overview.......................................................................................................................1-1
1.2 CPMC-1553R Features..............................................................................................................1-2
1.3 CPMC-1553R Options...............................................................................................................1-3
1.4 Installation and Configuration....................................................................................................1-3
1.4.1 Precautions ....................................................................................................................1-3
1.4.2 Installation.....................................................................................................................1-3
Chapter 2
Operation................................................................................................................................2-1
2.1 Functional Description...............................................................................................................2-1
2.2 PCI Bus Interface.......................................................................................................................2-2
2.2.1 PCI Configuration Space...............................................................................................2-2
2.2.2 PCI Memory Space........................................................................................................2-6
2.2.3 PCI I/O Space..............................................................................................................2-11
2.2.4 Interrupt A (INTA*)....................................................................................................2-11
2.3 MIL-STD-1553B Bus ..............................................................................................................2-11
2.3.1 Signal Naming Convention .........................................................................................2-11
2.3.2 Remote Terminal Address...........................................................................................2-11
2.4 Power Requirements ................................................................................................................2-13
Appendix A List of Abbreviations ......................................................................................................... A-1
List of Tables
Table 1. Industry Specifications and Standards .......................................................................................1-1
Table 2 PCI Bus Configuration Registers...............................................................................................2-2
Table 3 Summary of Implemented PCI Configuration Registers............................................................2-3
Table 4 Command Register Definition ...................................................................................................2-3
Table 5 Status Register Definition ..........................................................................................................2-4
Table 6 Memory Base Address Registers Definitions ............................................................................2-5
Table 7 Mapping of PCI Memory Space to ACE Internal Registers ......................................................2-7
Table 8 Signal Definition of ACE Configuration Register .....................................................................2-9
Table 9 Interrupt Control/Status Register ...............................................................................................2-9
Table 10 ACE Memory Space Address Mapping...................................................................................2-10
Table 11 Pn4 Signal Definitions .............................................................................................................2-12
Table 12 Power Requirements ................................................................................................................2-13
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Chapter 1 − Introduction
1.1 Manual Overview
This manual describes the CPMC-1553R board from Thales Computers. Chapter 1 summarizes the board’s
features and provides installation instructions. Chapter 2 describes its functional characteristics. Appendix
A is a list of the abbreviations used in this manual.
This manual uses the following terminology conventions:
•
•
•
Addresses and signal names are shown in capital letters.
An asterisk* after a signal name indicates active low.
Hexadecimal notation is indicated by the prefix 0x.
Thales Computers products are designed to meet several industry specifications and standards. Board
installers and operators should be familiar with the concepts of these documents.
Table 1. Industry Specifications and User Documentation
Category
Document
Ordering Information
PCI Local Bus
PCI Local Bus Specification,
Rev. 2.1, June 1, 1995
PCI Special Interest Group
P.O. Box 14070
Portland, OR 97214
(800)433-5177
PMC
Draft Standard Physical and
IEEE Standards Department
Environmental Layers for PCI Mezzanine Order Department
Cards: PMC, P1386.1/Draft 2.0, 5/4/95
445 Hoes Lane,
P.O. Box 1331
Piscataway, NJ 08855-1331
MIL-STD-
1553B Bus
MIL-STD-1553 Designer’s Guide,
Fifth Edition,
BU-65170/61580 and BU-61585
ILC Data Device Corporation
105 Wilbur Place
Bohemia, NY 11716
(516)567-5600
ACE Series BC/RT/MT Advanced
Communication Engine Integrated 1553
Terminal BU-65170, BU-61580,
BU-61590, BU-65178,BU-61588,
BU-61582, BU61583, BU-65620, and
BU-65621 User’s Guide, Rev. G
BU-65178/65179*/61588/61688*/61689*
Miniature Advanced Communications
Engine (Mini-ACE) and Mini-ACE
Plus*, BU-61688
Altera Corporation
101 Innovation Drive
San Jose, CA 95134
(408)544-7000
FLEX 10K
PLD
Altera Flex 10K
Altera Data Book, 1998
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1.2 CPMC-1553R Features
The CPMC-1553R is a single, conduction-cooled, PMC card with two dual-redundant MIL-STD-1553
Buses. The card has the following features:
•
Two ILC-DDC BU-61688 Mini-ACE MIL-STD-1553 interface devices (single version available)
-
-
-
64kBx16 shared RAM
Fully integrated MIL-STD1553 A/B
Bus Controller (BC)/ Remote Terminal (RT)/Monitor Terminal (MT) configurable through
software
-
-
-
Direct or transformer coupled interfaces
Internal time tag register
Interrupt status register
•
•
Bus controller features
-
-
-
-
Automatic retries
Programmable intermessage gap times
Automatic frame repetition
Flexible interrupt generation
RT features
-
-
-
-
RT address selected via PMC connector
Full software control of RT Status and Built-in-Test (BIT) words
Double buffer and circular buffer options programmable by subaddresses
Internal command illegalization
•
•
MT features three modes – word monitor, selective message monitor, and a combined RT/selective
monitor
PCI interface
-
-
33 MHz, 32-bit, 5V or 3.3V PCI bus
Interrupt on INTA*
•
•
•
•
Eight TTL-level user inputs
Eight TTL-level user outputs – open-drain output drivers
Temperature range -40 - +85°F
Weight – 96 grams
ILC-DDC
Mini-ACE
ILC-DDC
Mini-ACE
2
1
2
1
P12
P11
Altera
FLEX10
2
1
3.3V or 5.0 V
Keying
D4
D3 D2
D1
P14
D8
D7 D6
D5
Figure 1. CPMC-1553R Board Layout
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1.3 CPMC-1553R Options
Figure 2 shows the standard options available for the CPMC-1553R.
CPMC-1553R-__ __
Environment
Industrial/-SA.................................................................................I
Rugged/-RA....................................................................................R
Militarized/-RC ..............................................................................M
Channels
1 Channel..............................................................................................1
2 Channels............................................................................................2
Figure 2. CPMC-1553R Standard Options
1.4 Installation and Configuration
1.4.1 Precautions
Electrostatic discharge can damage many of the components of the CPMC-1553R. Therefore, it should be
kept in its protective antistatic bag until it is ready to be configured and installed. During installation or
whenever the CPMC-1553R is removed from the bag, it is important to follow proper grounding
procedures. Such procedures include use of an antistatic workstation, an operator wrist strap, and a
grounded bench mat. Save the antistatic bag for use in storing or shipping the CPMC-1553R.
Closely inspect the board for any signs of shipment-related damages such as loose components or bent pins.
If any evidence of damage is discovered, please notify the carrier and Thales Computers immediately.
1.4.2 Installation
The CPMC-1553R board attaches to a PMC carrier board. The attaching hardware for the CPMC-1553R
board is included with your order.
Attach the CPMC-1553R board to the PMC carrier board according to the following instructions.
a. Remove the PMC carrier board from the chassis.
b. Align the PCI connectors on the component side of the CPMC-1553R board with the PCI connectors
on the component side of the PMC carrier board. Press them together so that the friction from the pins
holds them together. After inserting the board make sure that the connectors have not shifted.
c. Insert the screws supplied with the board, through the bottom of the PMC carrier board and into the
standoffs attached to the CPMC-1553R.
d. For a conduction-cooled board, install the remaining screws through the CPMC-1553R into the
reinforcing bars on the PMC carrier board.
e. Insert the PMC carrier board back into the chassis making sure it is plugged into the backplane.
f. Turn on the system power.
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Chapter 2 − Operation
2.1 Functional Description
The CPMC-1553R is a PMC card with one or two, dual-redundant MIL-STD-1553B buses, eight user
inputs, and eight user outputs. The board interfaces to the user I/O through the PMC connector Pn4. Two
PMC connectors, Pn1 and Pn2 provide a direct connection to the PCI Bus. The Altera FLEX10
Programmable Logic Device (PLD) and the ILC-DDC Mini-ACE Device provide the interface between the
PCI bus and the MIL-STD-1553B bus. Each MIL-STD-1553B bus is implemented using an ILC-DDC
Mini-ACE device with 64kB x 16 of shared RAM. The implementation is shown in Figure 3.
Pn1
Pn2
PCI Bus
PCI Interface
(Altera PLD)
Local Bus Signals
User Inputs
User Outputs
1553 Interface
(ILC-DDC
Mini-ACE Devices)
MIL-STD-1553_1 TX/RX Channel A/B
MIL-STD-1553_1 RT address
MIL-STD-1553_2 TX/RX Channel A/B
MIL-STD-1553_2 RT address
Pn4
9903-1
Figure 3. CPMC-1553R Implementation Diagram
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2.2 PCI Bus Interface
An Altera FLEX10 PLD provides the interface between the PCI Bus and the ILC-DDC Mini-ACE device.
The FLEX10 operates at 33MHz, is powered by 5V or 3.3V, has a 32-bit data path, and is compliant with
the PCI Local Bus Specification, Revision 2.1. The CPMC-1553R is a target on the PCI Bus.
2.2.1 PCI Configuration Space
The PCI configuration space consists of a block of 64 configuration DWORDS, of which, the first 16 are
defined by the PCI Special Interest Group (PCI SIG). The configuration space defined by PCI SIG is
shown in Table 2. The shaded areas indicate registers that are supported by the CPMC-1553R board. A
summary of the supported configuration registers, and their default values is shown in Table 3. Any
registers that are not supported return a value of 0x00 when read.
Table 2. PCI Bus Configuration Registers
Byte
Address
3
2
1
0
(0x)
00
04
08
0C
10
14
18
1C
20
24
28
2C
30
34
38
3C
Device ID
Status Register
Vendor ID
Command Register
Class Code
Header Type
Revision ID
BIST
Latency Timer
Cache Line Size
Base Address Register 0
Base Address Register 1
Base Address Register 2
Base Address Register 3
Base Address Register 4
Base Address Register 5
Card Bus CIS Pointer
Subsystem ID
Subsystem Vendor ID
Expansion ROM Base Address Register
Reserved
Reserved
Maximum
Latency
Minimum Grant
Interrupt Pin
Interrupt Line
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Table 3. Summary of Implemented PCI Configuration Registers
Address
(0x)
00
Default Value
(0x)
151E
0001
0000
0400
03 or higher
078000
00
Register Name
Vendor ID
Read/Write
Read
Read
Read/Write
Read/Write
Read
Device ID
02
04
06
08
09
0E
Command Register
Status Register
Revision ID
Class Code
Header Type
Read
Read
Base Address Register 0
Base Address Register 1
Subsystem Vendor ID
Subsystem ID
10
14
2C
2E
Read/Write
Read/Write
Read
FFFC0000
FFFFF000
151E
Read
0001
Interrupt Line
Interrupt Pin
3C
3D
Read/Write
Read
00
01
2.2.1.1 Vendor ID Register The Vendor ID is a 16-bit register assigned to Thales Computers that
identifies the manufacturer of the device. The value of this register should always be 0x151E.
2.2.1.2 Device ID Register The Device ID is a 16-bit read-only register assigned by Cetia that identifies
the PCI interface device. The value of this register should always be 0x0001.
2.2.1.3 Command Register The Command Register is a 16-bit read/write register that provides basic
control over the ability of the CPMC-1553R board to respond to the PCI bus. The Command Register is
defined in Table 4. The default value of the Command Register is 0x0000.
Table 4. Command Register Definition
Data
Mnemonic
Read/Write
Definition
Bit
0
1
IO_ENA
MEM_ENA
Read/Write
Read/Write
Read/write to I/O access enable.
Memory Access Enable. When high, MEM_ENA
allows the CPMC-1553R to respond to PCI Bus
memory accesses.
5..2
6
Unused
PERR_ENA
—
—
Read/Write
Parity Error Enable. When high, PERR_ENA
enables the CPMC-1553R to report parity errors via
the PERR* output.
7
8
Unused
SERR_ENA
—
—
Read/Write
System Error Enable. When high, SERR_ENA
allows the CPMC-1553R to report address parity
errors via the SERR* output. However, to signal a
system error, the PERR_ENA bit must also be high.
—
15..9
Unused
—
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2.2.1.4 Status Register The Status Register is a 16-bit read/write register that provides the status of bus-
related events. Read transactions tell you the current status of the bits. The Status Register is cleared by
writing a logic one to that bit. Writing a logic zero has no affect on the registers. The status register is
defined in Table 5. The default value of the status register is 0x0400.
Table 5. Status Register Definition
Data Bit
8..0
Mnemonic
Unused
Read/Write
—
Definition
—
10..9
DEVSEL_TIM
Read
Device Select Timing. The DEVSEL_TIM bits
indicate target access timing of the CPMC-1553R
board function. This board function is designed to be
a slow target device. These bits are always read as
0x10b.
11
TABORT_SIG
Read/Write
Read/Write
Target Abort Signaled. This bit is set when a local
peripheral device terminates a transaction. The
CPMC-1553R board automatically sets this bit if it
issued a target abort after the local side asserted
LT_ABORT*. This bit is driven to the local side on
the TABORT_SIG output.
Target Abort. When high, TAR_ABRT_REC
indicates that the current target device transaction has
been terminated.
12
TAR_ABRT_REC
13
14
Unused
SERR_SET
—
—
Read/Write
Signaled System Error. When high, SERR_SET
indicates that the CPMC-1553R board drove the
SERR* output active (result of address phase parity
error). This signal is driven to the local side on the
SERR_SIG output
15
DET_PAR_ERR
Read/Write
Detected Parity Error. When high, DET_PAR_ERR
indicates that the CPMC-1553R board detected either
an address or data parity error. Even if parity error
reporting is disabled (PERR_ENA), the CPMC-1553R
board sets the DET_PAR_ERR bit. This signal is
driven to the local side on the PERR_DET output.
2.2.1.5 Revision ID Register The Revision ID register is an 8-bit, read-only register that identifies the
revision number of the device. The value of this register is set by Thales Computers. The current version
should be 0x03 or higher.
2.2.1.6 Class Code Register The Class Code register is a 24-bit, read-only register divided into three
sub-registers: base class, sub-class, and programming interface. The class code register always returns a
value of 0x078000 when read.
2.2.1.7 Cache Line Size Register The Cache Line Size register is not supported.
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2.2.1.8 Latency Timer Register The Latency Timer register is not supported.
2.2.1.9 Header Type Register The Header Type register is an 8-bit, read-only register that identifies the
CPMC-1553R board as a single function device. This register returns a value of 0x00 when read.
2.2.1.10 Built-In Self Test Register The Built-In Self Test (BIST) Register is not supported.
2.2.1.11 Base Address Registers Each of the six Base Address Registers (BAR#) has identical attributes.
Each BAR should be a 32-bit Hexadecimal number, that selects a combination of the following options:
type of address space, location of the reserved memory in the 32-bit address space, sets the reserved
memory as prefetchable or non-prefetchable, and the size of memory or I/O address space reserved for the
BAR.
BAR0 is a read/write register that is used for the CPMC-1553R Memory Base Address Register. After
writing 0xFFFFFFFF to this register, reading this register will return the value 0xFFFC0000.
BAR1 is a read/write register that is used for the CPMC-1553R Register Base Address Register. After
writing 0xFFFFFFFF to this register, reading this register will return the value 0xFFFFF000.
BAR2-BAR5 are unused. These registers return the value of 0x0000 when read.
Table 6. Memory Base Address Registers Definitions
Data
Mnemonic
Read/Write
Definition
Bit
0
MEM_IND
Read
Memory indicator.
0 – register maps into memory address space
1 – register maps into I/O address space
Memory type
00 – locate anywhere in 32-bit address space
01 – locate below 1MB
10 – locate anywhere in 64-bit address space
11 - reserved
Memory prefetchable. The PRE_FETCH bit indicates
whether the blocks of memory are prefetchable by the
host bridge.
2..1
3
MEM_TYPE
PRE_FETCH
Read
Read/write
Read/write
31..4 BAR
Base address register
2.2.1.12 Card Bus CIS Pointer Register The Card Bus Card Information Structure (CIS) Pointer Register
is not supported.
2.2.1.13 Subsystem Vendor ID Register The Subsystem Vendor ID register is a 16-bit, read-only
register that identifies Thales Computers as the vendor for the CPMC-1553R card. The value of this
register should always be 0x151E.
2.2.1.14 Subsystem ID Register The Subsystem ID Register is a 16-bit, read-only register that identifies
the CPMC-1553R board. The value of this register should always be 0x0001.
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2.2.1.15 Expansion ROM Base Address Register The Expansion ROM Base Address Register is not
supported.
2.2.1.16 Interrupt Line Register The Interrupt Line Register is an 8-bit, read/write register that defines
which system interrupt request line (on the system interrupt controller) the INTA* output is routed. The
default value for this register is 0x00.
2.2.1.17 Interrupt Pin Register The Interrupt Pin Register is an 8-bit, read-only register that defines the
PCI interrupt generated by this board to be INTA*. This register returns a value of 0x01 when read.
2.2.1.18 Minimum Grant Register The minimum Grant Register is not supported.
2.2.1.19 Maximum Latency Register The Maximum Latency Register is not supported.
2.2.2 PCI Memory Space
The ACE registers, user defined discrete I/O, and ACE memory are all mapped to the PCI memory space.
2.2.2.1 ACE Register Space The ACE register space is mapped into the PCI memory space. The
location of the ACE register and user defined discrete I/O is defined in Base Address Register 1 (BAR1),
address 0x14 in PCI configuration space. This space provides the software interface to the ACE device via
17 internal operational registers. The mapping of these registers is defined in Table 7. For more
information regarding the function of the register space of the ACE device, refer to the ILC-DDC data
sheet for BU-61688.
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Table 7. Mapping of PCI Memory Space to ACE Internal Registers
ACE Address
(ADDR15..ADDR0)
PCI Address
(AD15..AD0)
0000
Read/Write
Description
0000
0001
0002
0003
Read/Write
Read/Write
Read/Write
Write
ACE#1 – Interrupt Mask Register
ACE#1 – Configuration Register #1
ACE#1 – Configuration Register #2
ACE#1 – Start/Reset Register
0002
0004
0006
Read
ACE#1 – BC/RT Command Stack Pointer
Register
0008
0004
Read/Write
ACE#1 – BC Control Word Register/RT
Subaddress Control Word Register
ACE#1 – Time Tag Register
ACE#1 – Interrupt Status Register
ACE#1 – Configuration Register #3
ACE#1 – Configuration Register #4
ACE#1 – Configuration Register #5
ACE#1 –Data Stack Address Register
ACE#1 – BC Frame Time Remaining
Register
000A
000C
000E
0010
0012
0014
0016
0005
0006
0007
0008
0009
000A
000B
Read/Write
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read
0018
000C
000D
Read
ACE#1 – BC Message Time Remaining
Register
001A
Read/Write
ACE#1 – BC Frame Time/RT Last
Command/MT Trigger Register
ACE#1 – RT Status Word Register
ACE#1 – RT BIT Word Register
ACE#1 – Test Mode Register 0
ACE#1 – Test Mode Register 1
ACE#1 – Test Mode Register 2
ACE#1 – Test Mode Register 3
ACE#1 – Test Mode Register 4
ACE#1 – Test Mode Register 5
ACE#1 – Test Mode Register 6
ACE#1 – Test Mode Register 7
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved
ACE#1 – Reserved for Future Expansion
001C
001E
0020
0022
0024
0026
0028
002A
002C
002E
0030
000E
000F
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
001A
001B
001C
001D
001E
001F
—
Read
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
—
0032
0034
0036
0038
003A
003C
003E
0040 – 007F
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Table 7. Mapping of PCI Memory Space to ACE Internal Registers - Continued
PCI Address
(AD15..AD0)
ACE Address
(ADDR15..ADDR0)
Read/Write
Description
0080
0082
0084
0086
0000
0001
0002
0003
Read/Write
Read/Write
Read/Write
Write
ACE#2 – Interrupt Mask Register
ACE#2 – Configuration Register #1
ACE#2 – Configuration Register #2
ACE#2 – Start/Reset Register
Read
ACE#2 – BC/RT Command Stack Pointer
Register
0088
0004
Read/Write
ACE#2 – BC Control Work Register/RT
Subaddress Control Word Register
ACE#2 – Time Tag Register
ACE#2 – Interrupt Status Register
ACE#2 – Configuration Register #3
ACE#2 – Configuration Register #4
ACE#2 – Configuration Register #5
ACE#2 – Data Stack Address Register
ACE#2 – BC Frame Time Remaining
Register
008A
008C
008E
0090
0092
0094
0096
0005
0006
0007
0008
0009
000A
000B
Read/Write
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read
0098
000C
000D
Read
ACE#2 – BC Message Time Remaining
Register
009A
Read/Write
ACE#2 – BC Frame Time/RT Last
Command/MT Trigger Register
ACE#2 – RT Status Word Register
ACE#2 – RT BIT Word Register
ACE#2 – Test Mode Register #0
ACE#2 – Test Mode Register #1
ACE#2 – Test Mode Register #2
ACE#2 – Test Mode Register #3
ACE#2 – Test Mode Register #4
ACE#2 – Test Mode Register #5
ACE#2 – Test Mode Register #6
ACE#2 – Test Mode Register #7
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Reserved
ACE#2 – Internal Registers Reserved for
Future Expansion
009C
009E
00A0
00A2
00A4
00A6
00A8
00AA
00AC
00AE
00B0
000E
000F
0010
0011
0012
0013
0014
0015
0016
0017
0018
0019
001A
001B
001C
001D
001E
001F
—
Read
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
—
00B2
00B3
00B6
00B8
00BA
00BC
00BE
00C0 – 00FF
0180 – 01FF
—
Reserved
Reserved
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2.2.2.2 ACE Configuration and User I/O Register The ACE configuration used on the board can be read
via PCI I/O space defined in BAR1, with an address offset of 0x0800. In addition, this register also
provides the means for software to read the eight input bits and control the eight, open-drain output bits.
The output bits are pulled to 5V using 4.7K ohm resistors. This register is defined in Table 8.
Table 8. Signal Definition of Address 0x800, BAR 1
Data Bit
Read/Write
Definition
31..24
Read/Write
User defined outputs 7..0. After a PCI reset all
outputs are not driven.
23..16
15..12
11
Read
Not used
Read
User defined inputs 7..0
Always returns the value 0x0
0 – 64kB x 16 Mini-ACE
1 – 4kB x 16 Mini-ACE
10..8
Read
Indicates the number of mini-ACE devices
000 – 1 Mini-ACE
001 – 2 Mini-ACEs
7..3
2
Read
Read
Always returns the value 0x1F.
0 – User defined I/O interrupt active
1 – User defined I/O interrupt inactive
Check which input bit generated the interrupt by
reading the Interrupt Control and Status register.
0 - Mini-ACE[2..1] interrupt active
1 - Mini-ACE[2..1] interrupt inactive
1..0
Read
2.2.2.3 Interrupt Control/Status Register Each of the input bits can be independently configured to
generate an input based on a rising edge, falling edge, or either edge. The inputs are “debugged” using a 90
nanosecond digital filter before being applied to the edge detectors. A PCI reset clears the register.
Table 9. Interrupt Control/Status Register at 0x0804, BAR1
Data Bit
Read/Write
Definition
31..24
Read/Write
1 – Enable falling edge interrupt on input 7..0
0 – Inhibit falling edge interrupt on input 7..0
1 – Enable rising edge interrupt on input 7..0
0 – Inhibit rising edge interrupt on input 7..0
1 – Falling edge interrupt detected on input 7..0
0 - Falling edge interrupt not detected on input 7..0
1 – Clear falling edge interrupt status on input 7..0
0 – Do not change interrupt status for input 7..0
1 – Rising edge interrupt detected on input 7..0
0 - Rising edge interrupt not detected on input 7..0
1 – Clear rising edge interrupt status on input 7..0
0 – Do not change interrupt status for input 7..0
23..16
15..8
Read/Write
Read
Write
7..0
Read
Write
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2.2.2.4 ACE Reset Register This read/write register is accessible at 0x0808, BAR 1. Only bit 0 is used.
After a PCI reset the register reads 0x00000001. To generate a reset to both ACE chips write a 0 to bit 0.
A 0 holds both ACEs in reset. Write a 1 to bit D0 to unreset both ACEs. This register is provided only for
test purposes and is not intended to be used as part of the normal CPMC-1553R operation.
2.2.2.5 ACE Memory Space The ACE memory space is mapped into the PCI memory space. The
location of the ACE memory space is defined in BAR0, address 0x10 in PCI configuration space. All
registers are read/write and must be accessed as words only. The mapping of these registers is defined in
Table 10. For more information regarding the function of the memory space of the ACE device, refer to
the ILC-DDC data sheet for BU-61688.
Table 10. ACE Memory Space Address Mapping
PCI Address
(AD19..AD0)
00000
ACE Address
(ADDR15..ADDR0)
Description
0000
0001
0002
…
ACE#1 – RAM location 0000
ACE#1 – RAM location 0001
ACE#1 – RAM location 0002
…
00002
00004
…
1FFFE
20000
20002
20004
FFFF
0000
0001
0002
…
ACE#1 – RAM location FFFF
ACE#2 – RAM location 0000
ACE#2 – RAM location 0001
ACE#2 – RAM location 0002
…
…
3FFFE
40000 – 7FFFE
FFFF
ACE#2 – RAM location FFFF
Reserved
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2.2.3 PCI I/O Space
The PCI I/O space is not utilized by the CPMC-1553R board.
2.2.4 Interrupt A (INTA*)
The CPMC-1553R board generates INTA* on the PCI Bus when either of the Mini-ACE devices generates
an interrupt or an interrupt occurs from one of the user-defined input lines. The interrupt conditions are
configurable through software.
2.3 MIL-STD-1553B Bus
Each MIL-STD-1553B bus is implemented using an ILC-DDC Mini-ACE device with 64kB x 16 of shared
RAM. This device can be set up, through software, to operate as a BC, RT, or MT. Each Mini-Ace is
wired to operate in buffered mode, with a 16-bit data transfer rate. Each bus can be either direct coupled or
transformer coupled. Careful consideration should be given to the routing of the MIL-STD-1553B
differential signal pairs. All MIL-STD-1553B signals are routed off-board via the Pn4 connector. The
signal definitions for the Pn4 connector are defined in Table 11. Pins that have no connection on the
CPMC-1553R board are defined as N/C.
2.3.1 Signal Naming Convention
The MIL-STD-1553 signal pairs routed to the Pn4 connector use the following naming convention:
TX/RX-(letter)_(number)_(direct/trans)
TX/RX-(letter)_(number)*_(direct/trans)
The letter refers to channel A or B of a particular MIL-STD-1553B Bus. These correspond to channel A
and channel B on the ACE device.
The number refers to the ACE number. For a card using only one dual-redundant bus, only signals with a
1 in this location will be mapped to this connector.
The direct/trans refers to the type of coupling required for that signal pair: direct or transformer coupled.
The transformer-coupled signal pair for channel A on a board using only one Mini-ACE device would be
TX/RX-A_1_TRANS and TX/RX-A_1*_TRANS.
2.3.2 Remote Terminal Address
The RT address is configurable via the Pn4 connector. The RTAD[4:0] and RTADP signals are pulled up
on the CPMC-1553R board. A ground signal is provided with each set of RT address signals, on Pn4, to
allow the user to make any of these signals low.
The RT address may be configured to latch the RTAD[4:0] and RTADP signals with a software command
or to continuously track the RTAD[4:0] and RTADP signals. The default for the CPMC-1553R board is to
latch the RT address (RT_AD_LAT to the Mini-ACE pulled high).
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Table 11. Pn4 Signal Definitions
Pin
1
3
5
7
Signal
TX/RX-A_1_DIRECT
TX/RX-A_1*_DIRECT
RTAD1_1
TX/RX-B_1_DIRECT
TX/RX-B_1*_DIRECT
RTAD3_1
TX/RX-A_2_DIRECT
TX/RX-A_2*_DIRECT
RTADP_1
TX/RX-B_2_DIRECT
TX/RX-B_2*_DIRECT
RTAD0_2
Pin
2
4
6
8
Signal
RTAD0_1
TX/RX-A_1_TRANS
TX/RX-A_1*_TRANS
RTAD2_1
TX/RX-B_1_TRANS
TX/RX-B_1*_TRANS
RTAD4_1
TX/RX-A_2_TRANS
TX/RX-A_2*_TRANS
GND
9
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
61
63
TX/RX-B_2_TRANS
TX/RX-B_2*_TRANS
RTAD1_2
USER_INPUT0
USER_INPUT 1
RTAD2_2
USER_INPUT4
USER_INPUT5
RTAD4_2
USER_OUTPUT0
USER_OUTPUT1
GND
USER_OUTPUT4
USER_OUTPUT6
N/C
USER_INPUT2
USER_INPUT3
RTAD3_2
USER_INPUT6
USER_INPUT7
RTADP_2
USER_OUTPUT2
USER_OUTPUT3
USER_OUTPUT5
USER_OUTPUT7
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
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2.4 Power Requirements
The CPMC-1553R uses 3.3 volts and 5 volts power. VIO, +12 volts, and –12 volts are not used. The 3.3
volt supply powers the PCI interface and the 5 volt supply powers each of the ACEs. Typical current draw
is at 25°C at the “Typical” power voltages. The “Maximum” current draw is over the worse case condition
of voltage and temperature. Table 12 shows the power specifications for the board. Note that I5V0 is for
each ACE installed. With two ACE chips installed double I5V0
.
Table 12. Power Requirements
Symbol Description
Minimum
3.00
Typical
3.30
Maximum
3.60
Units
V
V
3V3
5V0
I3V3
I5V0
3.3V Logic Power
5.0V Logic Power
Current draw, 3.3V supply
4.75
5.00
.090
5.25
.120
A
Current draw per ACE, 5.0V supply
Idle
.095
.245
.360
.590
.200
.200
.500
.800
25% transmitter duty cycle
50% transmitter duty cycle
100% transmitter duty cycle
A
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Appendix A − List of Abbreviations
ACE
BAR
BC
Advanced Communication Engine
Base Address Register
Bus Controller
BIST
BIT
CIS
Built-In Self-Test Register
Built-In-Test
Card Information Structure
Monitor Terminal
MT
IEEE
I/O
Institute of Electrical and Electronic Engineers
Input/Output
PCI
Peripheral Component Interconnect
PCI SIG PCI Special Interest Group
PLD
PMC
RAM
ROM
RT
Programmable Logic Device
PCI Mezzanine Card
Random Access Memory
Read Only Memory
Remote Terminal
TTL
Transistor-Transistor Logic
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