CT2566 datasheet(13/37 Pages) AEROFLEX

Il numero della parte	CT2566

Spiegazioni elettronici	CT2566 MIL-STD-1553 to Microprocessor Interface Unit

PDF	37 Pages

Scroll/Zoom	100%

Produttore elettronici	AEROFLEX [Aeroflex Circuit Technology]

Homepage	http://www.aeroflex.com

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13 / 37 page

Aeroflex Circuit Technology

SCDCT2566 REV B 8/10/99 Plainview NY (516) 694-6700

CONTROLLER START

COMMAND RECEIVED

READS STACK POINTER

LOAD BLOCK STATUS WORD

INTO FIRST WORD OF

DESCRIPTOR STACK ENTRY

(SET SOM BIT IN BLOCK

STATUS WORD)

LOAD TIME TAG INTO

SECOND WORD OF

DESCRIPTOR

STACK ENTRY

ADDRESS FROM FOURTH WORD

OBTAIN DATA BLOCK

ISSUE BC START TO 1553 DEVICE

DETERMINE TYPE OF TRANSFER

READ CONTROL WORD TO

UPDATE BLOCK STATUS WORD

UPDATE TIME TAG

INCREMENT STACK

POINTER BY FOUR.

DECREMENT

MESSAGE COUNT

TRANSFERRED OK

DATA BLOCK

TRANSFERRED OK

STOP ON

ERROR SET

YES

MORE MESSAGES

TO SEND

YES

ISSUE BC EOM

STOP

Figure 14 – BC Sequence of Operation (Under CT2566 Control)

TRANSFER DATA TO/FROM

1553 BUS (NOTE: RAM NOW

CONTROLLED BY INPUT PINS

CS AND OE

* After controller start is issued the subsystem must wait until BCEOM is active

before issuing the next controller start.

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