CT1611 datasheet(17/24 Pages) AEROFLEX

Nome de Peças	CT1611

Descrição Electrónicos	DMA Controller with Buffer Memory,MIL-STD-1750A Compatible

PDF	24 Pages

Scroll/Zoom	100%

Fabricante Electrônico	AEROFLEX [Aeroflex Circuit Technology]

Página de início	http://www.aeroflex.com

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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

NO OP

NO OPERATION (Wait) when in poll mode (BC).

PACT

POLL ACTIVE

PACT = 1 indicates that a POLLING operation has been triggered.

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

SSERR

Sets subsystem error flag in returned status word (RTU Mode Only).

BUSY

Sets busy bit in returned status word, inhibits DMA (RTU Mode only).

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

RESET

Test A

Test B

Not Valid

TEST ENABLE

TEST A/B

Bit 15

Bit 14

Flag

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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