Datasheet

DS26521 Single T1/E1/J1 Transceiver
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Register Name:
TBPBS
Register Description:
Transmit BERT Port Bit Suppress Register
Register Address:
18Bh
Bit # 7 6 5 4 3 2 1 0
Name BPBSE8 BPBSE7 BPBSE6 BPBSE5 BPBSE4 BPBSE3 BPBSE2 BPBSE1
Default 0 0 0 0 0 0 0 0
Bit 7: Transmit Channel Bit 8 Suppress (BPBSE8). MSB of the channel. Set to one to stop this bit from being
used.
Bit 6: Transmit Channel Bit 7 Suppress (BPBSE7). Set to one to stop this bit from being used.
Bit 5: Transmit Channel Bit 6 Suppress (BPBSE6). Set to one to stop this bit from being used.
Bit 4: Transmit Channel Bit 5 Suppress (BPBSE5). Set to one to stop this bit from being used.
Bit 3: Transmit Channel Bit 4 Suppress (BPBSE4). Set to one to stop this bit from being used.
Bit 2: Transmit Channel Bit 3 Suppress (BPBSE3). Set to one to stop this bit from being used.
Bit 1: Transmit Channel Bit 2 Suppress (BPBSE2). Set to one to stop this bit from being used.
Bit 0: Transmit Channel Bit 1 Suppress (BPBSE1). LSB of the channel. Set to one to stop this bit from being
used.
Register Name:
TSYNCC
Register Description:
Transmit Synchronizer Control Register
Register Address:
18Eh
Bit # 7 6 5 4 3 2 1 0
Name — — — —
—
TSEN SYNCE RESYNC
— — — —
CRC4 TSEN SYNCE RESYNC
Default 0 0 0 0 0 0 0 0
Bit 3: CRC-4 Enable (CRC4) (E1 Mode Only).
0 = Do not search for the CRC-4 multiframe word
1 = Search for the CRC-4 multiframe word
Bit 2: Transmit Synchronizer Enable (TSEN).
0 = Transmit synchronizer disabled
1 = Transmit synchronizer enabled
Bit 1: Sync Enable (SYNCE).
0 = auto resync enabled
1 = auto resync disabled
Bit 0: Resynchronize (RESYNC). When toggled from low to high, a resynchronization of the transmit-side framer
is initiated. Must be cleared and set again for a subsequent resync.