28953-SWG-001-A_15 Datasheet, PDF (127/183 Pages) M/A-COM Technology Solutions, Inc. – Application and Channel Unit Software

RS8953B
Application and Channel Unit Software Developer’s Guide
8.4.1.3 Bit Pump BER Meter
Table 8-75. Opcode: 0x15 (_BER_METER_START)
Destination
Description
_BIT_PUMP0–2
Start BER meter.
8.0 API Command Set
8.4 Level 1 API Commands
Parameter
0x00
Activates the BER meter. The bit pump is set to transmit an internal 4-level scrambled 1s pattern.
The enabled bit is set and the bit_errors and meter_intervals variables are reset to 0. This command
should only be called during the bit pump’s normal operation.
Table 8-76. Opcode: 0x16 (_BER_METER_STOP)
Destination
Description
_BIT_PUMP0–2
Stop BER meter.
Parameter
0x00
Deactivates the BER meter. The bit pump is set to transmit external 4-level data. The enabled bit is
set to OFF. The bit_errors and meter_intervals variables are unmodified so they can still be read.
Table 8-77. Opcode: 0x92 (_BER_METER_STATUS)
Destination
Description
_BIT_PUMP0–2
Reads the BER meter status.
Reads the low byte of the number of bit errors.
Reads the high byte of the number of bit errors.
Reads the low byte of the number of meter
intervals elapsed.
Reads the high byte of the number of meter
intervals elapsed.
Parameter
0x00
0x01
0x02
0x03
0x04
8.4.1.4 Self-test
Table 8-78. Opcode: 0x8C (_SELF_TEST)
Destination
Description
_BIT_PUMP0–2
Execute a bit pump self test. Verifies read/write
operations.
Parameter
0x00
0x01
The return value 0x00 is a bit pump self-test pass; 0x01 is a bit pump self-test fail.
100418C
Conexant
8-37