mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 96

• Manufacturer Part Number: mt9074ap1
• Description: T1/e1/j1 Single Chip Transceiver With Wide Dynamic Range Liu
• Manufacturer: Zarlink Semiconductor

4-0
Bit
7-0
4-0
Bit
Bit
7
6
5
7
6
5
RxNFA
TNU4-8
Sa4-Sa8
Name
TALM
MFSEL
TxM7-0
Name
Name
- - -
- - - -
- - -
Table 85 - Non Frame Alignment Control Word (E1)
Table 86 - Multiframe and Data Link Selection (E1)
Unused.
Receive Non-frame Alignment Byte. This bit decides the contents of channel
0 of DSTo. When RxNFA=1, channel 0 of DSTo contains only data from the
received non frame alignment signal (NFAS). When RxNFA = 0, channel 0 of
DSTo contains both frame alignment and non frame alignment bytes received
with the rest of the frame.
Transmit Remote Alarm. This bit is transmitted on the PCM30 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 PCM30 link (one - alarm, zero -
normal). This control bit is ignored when ARAI is zero (page 01H, address 10H).
Transmit National Use Four to Eight (Sa4 - Sa8). These bits are transmitted
on the PCM30 2048 kbit/sec. link in bit positions four to eight of time slot zero of
the NFA frame, if selected by Sa4 - Sa8 control bits of the DL selection word
(page 01H, address 17H).
Transmit Message Bits 7 - 0. The contents of this register are transmit into
those outgoing DS1 channels selected by the Per Time Slot Control registers.
Unused
Multiframe Select. This bit determines which receive multiframe signal (CRC-4
or signaling) the RxMF (pin 42 in PLCC, 23 in MQFP) signal is aligned with. If
zero, RxMF is aligned with the receive signaling multiframe. If one, RxMF is
aligned with the receive CRC-4 multiframe.
Unused
kbits/sec. data link channel. Data link (DL) selection will function in termination
mode only; in transmit transparent mode Sa4 is automatically selected - see
TxTRSP control bit of page 01H, address 11H. If zero, the corresponding bits of
transmit non-frame alignment signal are programmed by the Non-Frame
Alignment Control Word (page 01H, address 16H).
A one selects the corresponding Sa bits of the NFA signal for 4, 8, 12, 16 or 20
Table 87 - Transmit Message Word (E1)
(Page 1, Address 18H)
(Page 1, Address 16H)
(Page 1, Address 17H)
Zarlink Semiconductor Inc.
MT9074
96
Functional Description
Functional Description
Functional Description
Data Sheet