Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 252 of 305
Register Name:
BSR
Register Description:
BERT Status Register
Register Address:
110Eh + (10h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
—
BBED
RBRA01
RSYNC
BRA1
BRA0
BRLOS
BSYNC
Default
0
0
0
0
0
0
0
0
Note: All latched bits in this register can create interrupts.
Bit 6: BERT Bit Error Detected (BED) Event (BBED). A latched bit, which is set when a bit error is detected. The
receive BERT must be in synchronization for it to detect bit errors.
Bit 5: Real-time BERT All Zeros or Ones (RBA01). Or’d real time status of all zero detection and all ones
detection.
Bit 4: Real-time Sync (RSYNC). Real time sync status. A zero indicates not synchronized and a one indicates
synchronization state.
Bit 3: BERT Receive All-Ones Condition (BRA1). A latched bit, which is set when 32 consecutive ones are
received.
Bit 2: BERT Receive All-Zeros Condition (BRA0). A latched bit, which is set when 32 consecutive zeros are
received.
Bit 1: BERT Receive Loss Of Synchronization Condition (BRLOS). A latched bit which is set whenever the
receive BERT begins searching for a pattern.
Bit 0: BERT in Synchronization Condition (BSYNC). A latched bit that is set when the incoming pattern matches
for 32 consecutive bit positions.