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參數(shù)資料
| 型號： | CT1611-FP |
| 廠商： | Aeroflex Inc. |
| 英文描述： | DMA Controller with Buffer Memory,MIL-STD-1750A Compatible |
| 中文描述： | DMA控制器與緩沖存儲器，符合MIL - STD - 1750A兼容 |
| 文件頁數(shù)： | 17/24頁 |
| 文件大小： | 291K |
| 代理商： | CT1611-FP |
17
SCDCT1611 Rev A
6,7
TEST
FIFO Loop Tests
A. 1553 Side Loop
NO DMA occurs
B. SUBYSTEM (Microprocessor) Side Loop
1553 Side Set BUSY
FIFO Exercised via
I/O Test Trigger Load Command
and
I/O Test Trigger Unload Command
8
NO OP
NO OPERATION (Wait) when in poll mode (BC).
9
PACT
POLL ACTIVE
PACT = 1 indicates that a POLLING operation has been triggered.
10
DBCACC
RTU Dynamic Bus Controll Acceptance when set in RTU Mode, Rtu will
accept bus control request as per MIL-PRF-1553B
0 = Not Set
1 = Set
11
SSERR
Sets subsystem error flag in returned status word (RTU Mode Only).
12
BUSY
Sets busy bit in returned status word, inhibits DMA (RTU Mode only).
13
TRANSACT
TRANSFER ACTIVITY
TRANSACT = 1 indicates a Transaction has been initiated and is in progress.
14-15
SERVRQ
Sets Service Request in returned status word (RTU Mode only).
Reg. Bit
Name
Definition
Bit 7
Bit 6
Test
0
1
1
0
0
1
0
1
RESET
Test A
Test B
Not Valid
TEST ENABLE
TEST A/B
Bit 15
Bit 14
Flag
0
0
1
1
0
1
0
1
NOT Set
SET until reset
Set until VECTOR word is transmitted
Set until reset *
* Bit 15 is ALWAYS RESET after VECTOR Word is transmitted.
Operation Register con’t
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