參數(shù)資料
型號: BU-62743
英文描述: MIL-STD-1553 Components |PCI-Enhanced Mini-ACE?
中文描述: 符合MIL - STD - 1553器件|的PCI增強(qiáng)迷你ACE論壇?
文件頁數(shù): 35/56頁
文件大?。?/td> 368K
代理商: BU-62743
35
Data Device Corporation
www.ddc-web.com
BU-62743/62843/62864
A-03/03-1M
WORD MONITOR MODE
In the Word Monitor Terminal mode, the PCI Enhanced Mini-ACE
monitors both 1553 buses. After the software initialization and
Monitor Start sequences, the PCI Enhanced Mini-ACE stores all
Command, Status, and Data Words received from both buses.
For each word received from either bus, a pair of words is stored
to the PCI Enhanced Mini-ACE's shared RAM. The first word is
the word received from the 1553 bus. The second word is the
Monitor Identification (ID), or "Tag" word. The ID word contains
information relating to bus channel, word validity, and inter-word
time gaps. The data and ID words are stored in a circular buffer
using the whole of the shared RAM address space.
WORD MONITOR MEMORY MAP
A typical word monitor memory map is illustrated in TABLE 61.
TABLE 61 assumes a 64K address space for the PCI Enhanced
Mini-ACE's monitor. The Active Area Stack pointer provides the
address where the first monitored word is stored.In the example,
it is assumed that the Active Area Stack Pointer for Area A (loca-
tion 0100) is initialized to 0000. The first received data word is
stored in location 0000, the ID word for the first word is stored in
location 0001, etc.
The current Monitor address is maintained by means of a count-
er register.This value may be read by the CPU by means of the
TABLE 57. ILLEGALIZATION TABLE MEMORY MAP
3FC
3FD
3FE
3FF
3BE
3BF
3C0
3C1
37D
37E
37F
380
3C2
3C3
381
382
383
33F
340
341
342
300
301
302
303
INTERNAL ADDRESS
Own Addr / Tx, SA 30. WC15-0
Own Addr / Tx, SA 30. WC31-16
Own Addr / Tx, SA 31. MC15-0
Own Addr / Tx, SA 31. MC31-16
Own Addr / Rx, SA 31. MC15-0
Own Addr / Rx, SA 31. MC31-16
Own Addr / Tx, SA 0. MC15-0
Own Addr / Tx, SA 0. MC31-16
Brdcst / Tx, SA 30. WC31-16
Brdcst / Tx, SA 31. MC15-0
Brdcst / Tx, SA 31. MC31-16
Own Addr / Rx, SA 0. MC15-0
Own Addr / Tx, SA 1. WC15-0
Own Addr / Tx, SA 1. WC31-16
Own Addr / Rx, SA 0. MC31-16
Own Addr / Rx, SA 1. WC15-0
Own Addr / Rx, SA 1. WC31-16
Brdcst / Rx, SA 0. MC15-0
Brdcst / Tx, SA 0. MC31-16
Brdcst / Tx, SA 1. WC15-0
Brdcst / Tx, SA 1. MC31-16
Brdcst / Rx, SA 0. MC15-0
Brdcst / Rx, SA 0. MC31-16
Brdcst / Rx, SA 1. WC15-0
Brdcst / Rx, SA 1. WC31-16
DESCRIPTION
7F8
7FA
7FC
7FE
77C
77E
780
782
6FA
6FC
6FE
700
784
786
702
704
706
67E
680
682
684
600
602
604
606
PCI BAR0 OFFSET
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