Datasheet

DS26514 4-Port T1/E1/J1 Transceiver
19-5856; Rev 4; 5/11 200 of 305
Register Name:
THBSE
Register Description:
Transmit HDLC-64 Bit Suppress
Register Address:
111h + (200h x (n-1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
TBSE8
TBSE7
TBSE6
TBSE5
TBSE4
TBSE3
TBSE2
TBSE1
Default
0
0
0
0
0
0
0
0
Bit 7 : Transmit Bit 8 Suppress (TBSE8). MSB of the channel. Set to one to stop this bit from being used.
Bit 6 : Transmit Bit 7 Suppress (TBSE7). Set to one to stop this bit from being used.
Bit 5 : Transmit Bit 6 Suppress (TBSE6). Set to one to stop this bit from being used.
Bit 4 : Transmit Bit 5 Suppress (TBSE5). Set to one to stop this bit from being used
Bit 3 : Transmit Bit 4 Suppress (TBSE4). Set to one to stop this bit from being used
Bit 2 : Transmit Bit 3 Suppress (TBSE3). Set to one to stop this bit from being used
Bit 1 : Transmit Bit 2 Suppress (TBSE2). Set to one to stop this bit from being used
Bit 0 : Transmit Bit 1 Suppress (TBSE1). LSB of the channel. Set to one to stop this bit from being used.
Register Name:
THC2
Register Description:
Transmit HDLC-64 Control Register 2
Register Address:
113h + (200h x (n - 1)) : where n = 1 to 4
Bit #
7
6
5
4
3
2
1
0
Name
TABT
SBOC
THCEN
THCS4
THCS3
THCS2
THCS1
THCS0
TABT
—
THCEN
THCS4
THCS3
THCS2
THCS1
THCS0
Default
0
0
0
0
0
0
0
0
Bit 7: Transmit Abort (TABT). A 0-to-1 transition will cause the FIFO contents to be dumped and one FEh abort to
be sent followed by 7Eh or FFh flags/idle until a new packet is initiated by writing new data into the FIFO. Must be
cleared and set again for a subsequent abort to be sent.
Bit 6: Send BOC (SBOC) (T1 Mode Only). Set = 1 to transmit the BOC code placed in bits 0 to 5 of the
T1TBOC
register.
Bit 5: Transmit HDLC-64 Controller Enable (THCEN)
0 = Transmit HDLC-64 Controller is not enabled
1 = Transmit HDLC-64 Controller is enabled
Bits 4 to 0: Transmit HDLC-64 Channel Select (THCS[4:0]). Determines which DSO channel will carry the HDLC
message if enabled. Changes to this value are acknowledged only upon a transmit HDLC-64 controller reset (THR
at
THC1.5).