CONTREX CX-1200 - Manual (Page 288)

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Message Control byte definition description:
Value CX-1200 Control actions CX-1200 Response
00 Disable Trace, stop collecting data Error code
01 Enable Trace, wait for trigger Error code
02 Read Trace Configuration, ignore bit 0 Status Byte, Trace Configuration
03 Read Trace Configuration, ignore bit 0 Status Byte, Trace Configuration
04 Set Trace Config, Disable Trace, stop Configuration Error Codes
05 Set Trace Config, Reset Trace, wait for trigger Configuration Error Codes
06 Set & Read Trace Config & Disable Trace, stop Error Codes & Trace Configuration
07 Set & Read Trace Config & Reset, wait for trigger Error Codes & Trace Configuration
Trace Status Byte Definitions:
Bit 7 = Not Used (always 0)
Bit 6 = Not Used (always 0)
Bit 5 = Not Used (always 0)
Bit 4 = Not Used (always 0)
Bit 3 = (1) Trace complete (0) Trace not complete
Bit 2 = (1) Trace active, trigger encountered, collecting data (0) No Trigger encountered
Bit 1 = (1) Trigger enabled, collecting data, waiting for trigger (0) Trigger disabled
Bit 0 = (1) Trace enabled (0) Trace disabled
Trace Status Byte values:
00 = Trace disabled
01 = Trace enabled
03 = Trace enabled, collecting pre-trigger data, waiting for trigger
05 = Trace enabled, trigger encountered, collecting data
08 = Trace complete, data collected