mt9075bpr1 Zarlink Semiconductor, mt9075bpr1 Datasheet - Page 39

• Manufacturer Part Number: mt9075bpr1
• Description: E1 Single Chip Transceiver With Liu
• Manufacturer: Zarlink Semiconductor

4 -0
Bit
7
6
5
2
1
0
TxTRSP
TNU4-8
(11111)
Name
TALM
CSYN
AUTC
TIU1
- - -
(1)
(1)
(0)
(0)
(0)
Transmit International Use One. When CRC-4 operation is disabled (CSYN=1), this
bit is transmit on the PCM 30 2048 kbit/sec. link in bit position one of time-slot zero of
non-frame-alignment frames. It is reserved for international use and should normally
be kept at one. If CRC processing is used, i.e., CSYN =0, this bit is ignored.
Unused. Set low for normal operation.
Transmit Remote Alarm. This bit is transmitted on the PCM 30 2048 kbit/sec. link in
bit position three (A bit) of time slot zero of NFAS frames. It is used to signal an alarm
to the remote end of the PCM 30 link (one - alarm, zero - normal). This control bit is
ignored when ARAI is zero (page 01H, address 11H).
Transmit National Use Four to Eight (S
PCM 30 2048 kbit/sec. link in bit positions four to eight of time slot zero of the NFA
frame, if selected by S
address 10H).
Transmit Transparent Mode. If one, the MT9075B is in transmit transparent mode.
No framing or signaling is imposed on the data transmit from DSTi onto the line. If
zero, it is in termination mode.
CRC-4 Synchronization. If zero, basic CRC-4 synchronization processing is
activated, and TIU0 bit and TIU1 bit programming will be overwritten. If one, CRC-4
synchronization is disabled, the first bits of channel 0 are used as international use
bits and are programmed by TIU0 and TIU1.
Automatic CRC-interworking. If zero, automatic CRC-interworking is activated. If
one, it is deactivated. See Framing Algorithm section for a detail description.
Table 14 - Mode Selection Control Word
Table 15 - NFA Control Word
(Page 01H, Address 11H)
(page 01H, Address 12H)
Zarlink Semiconductor Inc.
a4
MT9075B
- S
a8
Functional Description
39
control bits of the DL selection word (page 01H,
a4
- S
a8
). These bits are transmitted on the
Data Sheet