CT2565 Datasheet, PDF (18/31 Pages) Aeroflex Circuit Technology – CT2565 Bus Controller, Remote Terminal and BUS Monitor FOR MIL-STD-1553B

1553 BUS ^{CMD RT}A ^{RCV PCMD RT}B ^TX ^P
STAT RT_B P DATA
P
10.75±0.75µs
(16) BITS
STAT RT_A P
REF
10.75±0.5µs
7.5±0.5µs
7.5±0.5µs
7.5±0.5µs
4.5±0.5µs
3.4±0.5µs
NRGRNT (42)
ILLEGALIZE
INCMD (9)
HANDSHAKE
(REQ, GRNT, ACK)
SOM (78)
MEM-READ
(CS, WE, ADRINC)
D0 - D15
NODT (71)
STATEN (3)/
BITEN (43)
EOM (57)
TIMEOUT (4)
LMC ILLCMD
1.5µs
2.3µs
RCV
CMD
5.5±0.5µs
5.5±0.5µs
DATA STAT
450ns
(TIMEOUT ERROR)
19.5µs
400ns
330ns
500ns
400ns
(NO TIMEOUT)
Note: All timing is typical unless otherwise noted.
Figure 18 – RT- RT Transfer Timing
15
87
0
SET TO "0"
SET TO "0"
CHAN B XMITTER TIMEOUT
CHAN A XMITTER TIMEOUT
CHAN B LOOP TEST FAILURE
CHAN A LOOP TEST FAILURE
CHAN B XMITTER SHUTDOWN
CHAN A XMITTER SHUTDOWN
NON-MODE BROADCAST CMD TO XMIT
MESSAGE HIGH WORD COUNT
MESSAGE LOW WORD COUNT
ILLEGAL MODE CODE OR ILLEGAL
BROADCAST WITH MODE CODE
MODE CODE OR T/R ERROR
CHAN A/B LOOP TEST FAILURE
HANDSHAKE FAILURE
Notes:
CHAN A/B XMITTER TIMEOUT
(1) Bits 0-2 and 10-13 are latched and only cleared by a mode reset command or a master RESET.
(2) Bits 3-7 are cleared at the start of each new message and updated at the end of the message. They reflect the present
command word.
(3) Bits 8-9 are set by the mode command for Transmitter Shutdown and are cleared by the mode command for Override
Transmitter Shutdown, Reset RT or a master RESET.
Figure 19 – Bit Word
Aeroflex Circuit Technology
18
SCDCT2565 REV B 8/10/99 Plainview NY [phone]