CT2565 Aeroflex Circuit Technology, CT2565 Datasheet - Page 18

• Manufacturer Part Number: CT2565
• Description: CT2565 Bus Controller/ Remote Terminal and BUS Monitor FOR MIL-STD-1553B
• Manufacturer: Aeroflex Circuit Technology

Aeroflex Circuit Technology
Notes:
(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
(3) Bits 8-9 are set by the mode command for Transmitter Shutdown and are cleared by the mode command for Override
HANDSHAKE
(REQ, GRNT, ACK)
MEM-READ
(CS, WE, ADRINC)
command word.
Transmitter Shutdown, Reset RT or a master RESET.
NRGRNT (42)
TIMEOUT (4)
ILLEGALIZE
STATEN (3)/
BITEN (43)
NODT (71)
INCMD (9)
1553 BUS
SOM (78)
EOM (57)
D0 - D15
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
CHAN A/B XMITTER TIMEOUT
CMD
RT
A
5.5±0.5µs
RCV P
LMC
3.4±0.5µs
CMD
RCV
CMD
1.5µs
ILLCMD
Figure 18 – RT- RT Transfer Timing
RT
B
T
X
Figure 19 – Bit Word
P
7.5±0.5µs
10.75±0.75µs
(TIMEOUT ERROR)
19.5µs
15
18
STAT RT
B
P DATA
5.5±0.5µs
400ns
330ns
(16) BITS
P
8 7
450ns
7.5±0.5µs
500ns
10.75±0.5µs
DATA
Note: All timing is typical unless otherwise noted.
2.3µs
REF
SCDCT2565 REV B 8/10/99 Plainview NY [phone]
STAT
STAT RT
(NO TIMEOUT)
A
400ns
P
4.5±0.5µs
7.5±0.5µs
0