Comtech EF Data MM200 User Manual
Page 118
Appendix A
MM200 High-Speed Microwave Modem
A-18
TM086 – Rev. 4.1
Bit 7 = Track fault status
Opcode: <0x20B2>
Query a selected demodulator’s channel configuration and status
Command Data Field 1 Byte
<1>
Selected channel
number
0 = channel1
1 = channel2
2 = channel3
3 = channel4
Query Response
<1>
<1>
<1>
<1>
Selected channel
Number
Number of nonvol
bytes*
* M&C developers
MUST use this
number of nonvolatile
bytes to index into the
selected channel
status area. The
nonvolatile data
might grow with
future firmware
revisions. Refer to
discussion on
forward/backward
compatibility.
Channel Major Alarm
Mask
Channel Minor Alarm
Mask
0 = channel1
1 = channel2
2 = channel3
3 = channel4
Number of nonvol bytes for selected channel
0 = Mask, 1 = Allow
Bit 0 = Demod daughter board FPGA status
Bit 1 = RF PLL lock detect status
Bit 2 - 7 = Spare
0 = Mask, 1 = Allow
Bit 0 = QAM lock status
Bit 1 = FEC lock status
Bit 2 = FIFO full status
Bit 3 = FIFO empty status
Bit 4 = Sync lock status
Bit 5 = FIFO reload status
Bit 6 = FIFO pos status
Bit 7 = Track fault status
Status Bytes
<1>
<1>
Channel Major Alarm
Status
Channel Minor Alarm
Status
0 = Pass, 1 = Fail
Bit 0 = Demod daughter board FPGA status
Bit 1 = RF PLL lock detect status
Bits 2 - 7 = Spare
0 = Pass, 1 = Fail
Bit 0 = QAM lock status
Bit 1 = FEC lock status
Bit 2 = FIFO full status