mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 64

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

7 - 0
Bit
Bit
1
0
Bit
7
6
5
4
3
BIOMTx7-0
H1R64
Name
DSToEn
CSToEn
Name
JTS
Name
RBEn
DBEn
MSN
Table 24 - Transmit Bit Oriented Message (T1)
Table 23 - Data Link Control Word (T1)
Table 25 - Signaling Control Word (T1)
Japan Telecom Synchro-nization. Setting this bit forces the inclusion of
Sbits in the CRC-6 calculation.
HDLC1 Rate Select. Setting this pin high while HDLC1 is activated
enables 64 Kb/s operation of the data link on channel 24. Setting this pin
low while HDLC1 is activated enables 56 Kb/s operation on channel 24
(this prevents data corruption due to forced bit stuffing).
Transmit Bit Oriented Message. The contents of this register are
concatenated with a sequence of eight 1’s and continuously transmit in the
FDL bit position of ESF trunks. Normally the leading bit (bit 7) and last bit (bit
0) of this register are set to zero.
DSTo Enable. If zero pin DSTo is tristate. If set the pin DSTo is enabled.
CSTo Enable. If zero pin CSTo is tristate. If set the pin CSTo is enabled.
Robbed Bit Signaling Enable. Setting this bit multiplexes the AB or
ABCD signaling bits into bit position 8 of all DS0 channels every 6th frame.
Debounce Enable. Setting this bit causes incoming signaling bits to be
debounced for a period of 6 to 9 milliseconds before reporting on CSTo or
in the Receive Signaling Bits Page.
Most Significant Nibble. If set to one the most significant nibble of CSTi
and CSTo are activated. The reporting stream CSTo contains signaling
information for the equivalent channel in the most significant nibble, and
least significant nibble is tristate. If set to zero the least significant nibble is
active for CSTi and CSTo and the most significant nibble of CSTo is
tristate.
(Page 1, Address 12H)
(Page 1, Address 13H)
(Page 1, Address 14H)
Zarlink Semiconductor Inc.
MT9074
64
Functional Description
Functional Description
Functional Description
Data Sheet