mt9075bpr1 Zarlink Semiconductor, mt9075bpr1 Datasheet - Page 57

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

Bit
6 - 0
7
6
5
4
3
2
1
0
Bit
7
MFSYNC
CRCSYN
CRCIWK
CRCRF
SYNC
Name
REB1
REB2
RFA2-8
RED
Name
RIU0
Table 38 - Receive Frame Alignment Signal
Table 37 - Synchronization Status Word
Receive Basic Frame Alignment. SYNC indicates the basic frame
alignment status (1 - loss; 0 - acquired).
Receive Multiframe Alignment. MFSYNC indicates the multiframe
alignment status (1 - loss; 0 -acquired).
Receive CRC-4 Synchronization. CRCSYN indicates the CRC-4
multiframe alignment status (1 - loss; 0 - acquired).
Receive E-Bit One Status. REB1 indicates the status of the received E1
bit of the last multiframe.
Receive E-Bit Two Status. REB2 indicates the status of the received E2
bit of the last multiframe.
CRC-4 Reframe. A one indicates that the receive CRC-4 multiframe
synchronization could not be found within the time out period of 8 msec.
after detecting basic frame synchronization. This will force a reframe when
the maintenance option is selected and automatic CRC-4 interworking is
de-selected.
RED Alarm. RED goes high when basic frame alignment has been lost for
at least 100 msec. This bit will be low when basic frame alignment is
acquired (I.431).
CRC-4 Interworking. CRCIWK indicates the CRC-4 interworking status
(1 - CRC-to-CRC; 0 - CRC-to-non-CRC).
Receive International Use Zero. This is the bit which is received on
the PCM 30 2048 kbit/sec. link in bit position one of the frame alignment
signal. It is used for the CRC-4 remainder or for international use.
Receive Frame Alignment Signal Bits 2 to 8. These bit are received
on the PCM 30 2048 kbit/sec. link in bit positions two to eight of frame
alignment signal. These bits form the frame alignment signal and
should be 0011011.
(Page 03H, Address 11H)
(Page 03H, Address 10H)
Zarlink Semiconductor Inc.
MT9075B
57
Functional Description
Functional Description
Data Sheet