mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 93
mt9074ap1
Manufacturer Part Number
mt9074ap1
Description
T1/e1/j1 Single Chip Transceiver With Wide Dynamic Range Liu
Manufacturer
Zarlink Semiconductor
Datasheet
1.MT9074AP1.pdf
(151 pages)
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3-0
Bit
Bit
7
6
5
4
7
6
5
4
3
1
2
RxTRSP
TxTRSP
TAIS16
HDLC0
HDLC1
Name
TxAO
Name
TIU1
- - -
TE
- - -
- - -
- - -
Table 80 - Transmit Alarm Control Word (E1)
Table 81 - HDLC Selection Word (E1)
Unused
Transmit E Bits. When zero and CRC-4 synchronization is achieved, the
E-bits transmit the received CRC-4 comparison results to the distant end
of the link, as per G.703. That is, when zero and CRC-4 synchronization is
lost, the transmit E-bits will be zero. If one, and CRC-4 synchronization is
lost the transmit E-bits will be one.
Transmit AIS Time Slot 16. If one, an all ones signal is transmitted in
time slot 16. If zero, time slot functions normally.
Transmit All Ones. When low, this control bit forces an unframed all ones
to be transmit at TTIP and TRING.
Unused
Unused.
Unused.
HDLC0 Select. If one, then HDLC0 is connected to the data link on
selected Sa bits at a rate of 4, 8, 12, 16 or 20 kbits/sec. If zero, HDLC0 is
deselected and all HDLC0 interrupts are masked.
HDLC1 Select. If one, then HDLC1 is connected to time slot 16 in CCS
mode. If zero, HDLC1 is deselected and all HDLC1 interrupts are
masked.
Receive Transparent Mode. When this bit is set to one, the framing
function is disabled on the receive side. Data coming from the receive
line passes through the slip buffer and drives DSTo with an arbitrary
alignment. When zero, the receive framing function operates normally.
Transmit Transparent Mode. If one, the MT9074 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.
Transmit International Use One. When CRC-4 operation is disabled
(CSYN=1), this bit is transmit on the PCM30 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.
(Page 1, Address 11H)
(Page 1, Address 12H)
Zarlink Semiconductor Inc.
MT9074
93
Functional Description
Functional Description
Data Sheet
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