Rainbow Electronics DS31256 - Manual (Page 65)

DS31256
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Register Name: BERTBC0
Register Description: BERT 32-Bit Bit Counter (lower word)
Register Address:
0510h
Register Name:
BERTBC1
Register Description: BERT 32-Bit Bit Counter (upper word)
Register Address:
0514h
BERTBC0: BERT Bit Counter 0 (lower word)
Bit # 7 6 5 4 3 2 1 0
Name BERT 32-Bit Bit Counter (lower byte)
Default 0 0 0 0 0 0 0 0
Bit # 15 14 13 12 11 10 9 8
Name BERT 32-Bit Bit Counter
Default 0 0 0 0 0 0 0 0
BERTBC1: BERT Bit Counter 0 (upper word)
Bit # 23 22 21 20 19 18 17 16
Name BERT 32-Bit Bit Counter
Default 0 0 0 0 0 0 0 0
Bit # 31 30 29 28 27 26 25 24
Name BERT 32-Bit Bit Counter (upper byte)
Default 0 0 0 0 0 0 0 0
Note: Bits that are underlined are read-only; all other bits are read-write
.
Bits 0 to 31/BERT 32-Bit Bit Counter (BERTBC0 and BERTBC1). This 32-bit counter increments for each
data bit (i.e., clock) received. This counter is not disabled when the receive BERT loses synchronization. This
counter is loaded with the current bit count value when the LC control bit in the BERTC0 register is toggled from
low (0) to high (1). When full, this counter saturates and sets the BBCO status bit.
Register Name: BERTEC0
Register Description: BERT 24-Bit Error Counter (lower) and Status Information
Register Address:
0518h
Bit # 7 6 5 4 3 2 1 0
Name reserved RA1 RA0 RLOS BED BBCO BECO SYNC
Default 0 0 0 0 0 0 0 0
Bit # 15 14 13 12 11 10 9 8
Name BERT 24-Bit Error Counter (lower byte)
Default 0 0 0 0 0 0 0 0
Note: Bits that are underlined are read-only; all other bits are read-write.
Bit 0/Real-Time Synchronization Status (SYNC). Real-time status of the synchronizer (this bit is not latched). Is
set when the incoming pattern matches for 32 consecutive bit positions. Is cleared when six or more bits out of 64
are received in error.