Datasheet

____________________________________________________ DS34T101, DS34T102, DS34T104, DS34T108
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Register Name:
THC2
Register Description:
Transmit HDLC Control Register 2
Register Address:
base address + 0x44C
Bit # 7 6 5 4 3 2 1 0
Name TABT SBOC
THCEN
THCS4 THCS3 THCS2 THCS1 THCS0
Default 0 0 0 0 0 0 0 0
Bit 7: Transmit Abort (TABT). A zero-to-one transition of this bit causes the Tx FIFO contents to be dumped and
one 0xFE abort to be sent followed by 0x7E or 0xFF 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 this bit to one to transmit the bit-oriented code stored in TBOC[5:0].
See Section 10.11.4.1.
Bit 5: Transmit HDL
C Controller Enable (THCEN). See section 10.12.2.
0 = Tra
nsmit HDLC controller is not enabled
1 = Transmit HDLC controller is enabled
Bits 4 to 0: Transmit HDLC Channel Select (THCS4-0). These bits specify which DS0 is mapped to the HDLC
controller when enabled with RHMS=0. THCS[4:0]=00000 selects channel 1, while THCS[4:0]=11111 selects
channel 32. Channel numbers greater than 24 are invalid in T1 mode. A change to this field is acknowledged only
after a Transmit HDLC Reset (THC1.T
HR bit above). See section 10.12.2
Register Name:
TSACR
Register Description:
Transmit Sa Bit Control Register (E1 Mode Only)
Register Address:
base address + 0x450
Bit # 7 6 5 4 3 2 1 0
Name SiAF SiNAF RA Sa4 Sa5 Sa6 Sa7 Sa8
Default 0 0 0 0 0 0 0 0
Bit 7: International Bit in Align Frame Insertion Control Bit (SiAF).
0 = Do not insert data from the TSiAF regi
ster into the transmit data stream
1 = Insert data from the TSiAF registe
r into the transmit data stream
Bit 6: International Bit in Non-Align Frame Insertion Control Bit (SiNAF).
0 = Do not insert data from the TSiNAF regi
ster into the transmit data stream
1 = Insert data from the TSiNAF regi
ster into the transmit data stream
Bit 5: Remote Alarm Insertion Control Bit (RA).
0 = Do not insert data from the TRA re
gister into the transmit data stream
1 = Insert data from the TRA registe
r into the transmit data stream
Bit 4: Additional Bit 4 Insertion Control Bit (Sa4).
0 = Do not insert data from the TSa4 registe
r into the transmit data stream
1 = Insert data from the TSa4 regi
ster into the transmit data stream
Bit 3: Additional Bit 5 Insertion Control Bit (Sa5).
0 = Do not insert data from the TSa5 registe
r into the transmit data stream
1 = Insert data from the TSa5 regi
ster into the transmit data stream
Bit 2: Additional Bit 6 Insertion Control Bit (Sa6).
0 = Do not insert data from the TSa6 registe
r into the transmit data stream
1 = Insert data from the TSa6 regi
ster into the transmit data stream