CT2553-FP AEROFLEX [Aeroflex Circuit Technology], CT2553-FP Datasheet - Page 21

• Manufacturer Part Number: CT2553-FP
• Description: CT2553 / 2554 / 2555 / 2556 Advanced Integrated MUX (AIM) Hybrid FOR MIL-STD-1553
• Manufacturer: AEROFLEX [Aeroflex Circuit Technology]

Aeroflex Circuit Technology
DYNAMIC BUS CONTROL (00000)
SYNCHRONIZE WITHOUT DATA WORD (00001)
TRANSMIT STATUS WORD (00010)
INITIATE SELF-TEST (00011)
TRANSMITTER SHUTDOWN (00100)
ERROR CONDITIONS
ERROR CONDITIONS
ERROR CONDITIONS
ERROR CONDITIONS
ERROR CONDITIONS
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No status response. Bits set: message error (SW), High word Count (BIT Word).
3. T/R bit Set to Zero. No status response. Bits set: message error (SW), T/R Error (Bit Word).
4. Zero T/R bit and Broadcast Address. No status response. Bits set: message error, broadcast received (SW), Illegal Mode Code, T/R
5. Broadcast Address. No status response. Bits set: message error, broadcast received (SW), Illegal Mode Code (BIT Word).
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No status response. Bits set: message error (SW), High Word Count (BIT Word).
3. T/R bit Set to Zero. No status response. Bits set: message error (SW), T/R Error (BIT Word).
4. Zero T/R bit and Broadcast Address. No status response. Bits set: message error, broadcast received (SW), Illegal Mode Code, T/R
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No status response. Bits set: message error (SW), High Word Count (BIT Word).
3. T/R bit Set to Zero. No status response. Bits set: message error (SW), T/R Error (BIT Word).
4. Zero T/R bit and Broadcast Address. No status response. Bits set: message error, broadcast received (SW), Illegal Mode Code, T/R
5. Broadcast Address. No status response. Bits set: message error, broadcast received (S/W), Illegal Mode code, T/R Error (BIT Word).
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No status response. Bits set: message error (SW), High Word Count (BIT Word).
3. T/R bit Set to Zero. No status response. Bits set: message error (SW), T/R Error (BIT Word).
4. Zero T/R bit and Broadcast Address. No status response. Bits set: message error, broadcast received (SW), T/R Error (BIT Word).
5. Faulty Test. Bits set: terminal flag (SW), A/B Loop Test Fail, Current 1553 Bus (A or B) Loop Test Fail (BIT Word).
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No status response. Bits set: message error (SW), High Word Count (BIT Word).
3. T/R bit Set to Zero. No status response. Bits set: message error (SW), T/R Error BIT Word).
4. Zero T/R bit and Broadcast Address. No status response. Bits set: message error, broadcast received (SW), Illegal Mode Code, T/R
MESSAGE SEQUENCE = DBC * STATUS
The CT2553 responds with status. If the subsystem wants control of the bus, it must set DBACC within 2.5us after NBGRT.
MESSAGE SEQUENCE = SYNC * STATUS
The CT2553 responds with status. If sent as a broadcast, the broadcast receive bit will be set and status response suppressed.
MESSAGE SEQUENCE = TRANSMIT STATUS * STATUS
The status and BIT word registers are not altered by this command and contain the resulting status from the previous command.
MESSAGE SEQUENCE = SELF TEST * STATUS
The CT2553 responds with a status word. If the command was broadcast, the broadcast received bit is set and status transmission
suppressed. Short-loop test is initiated on the status word transmitted. If the test fails, an RT fail flag is generated.
MESSAGE SEQUENCE - SHUTDOWN * STATUS
This command is only used with dual redundant bus systems. The CT2553 responds
with status. At the end of the status transmission, the CT2553 inhibits any further transmission from the dual redundant channel. Once
shutdown, the transmitter can only be re-activated by Override Transmitter Shutdown or RESET RT commands.
Error (BIT Word).
Error (BIT Word).
Error (BIT Word).
Error (BIT Word).
Table 6 – Mode Codes
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SCDCT2553 REV B 8/6/99 Plainview NY [phone]