mt9074ap1 Zarlink Semiconductor, mt9074ap1 Datasheet - Page 103

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

6-5
Bit
6-4
2-0
Bit
7
4
3
2
1
0
7
3
ADSEQ
LIUEn
Name
T1/E1
ELOS
RSV
RSV
RSV
Name
RSV
RSV
RSV
CPL
E1 Mode Selection. when this bit is one, the device is in E1 mode.
Reserved. Must be kept at 0 for normal operation.
LIU Enable.Setting this bit low enables the internal LIU front-end. Setting this pin
high disables the LIU. Digital inputs RXA and RXB are sampled by the rising
edge of E2.0i (C1.50) to strobe in the received line data. Digital transmit data is
clocked out of pins TXA and TXB with the rising edge of C2.0o
ELOS Enable. Set this bit low to set the analog loss of signal threshold to 40 dB
below nominal. Set this bit high to set the analog loss of signal threshold to 20
dB below nominal.
Reserved. Must be kept at 0 for normal operation.
Digital Milliwatt or Digital Test Sequence. If one, the A-law digital milliwatt
analog test sequence will be selected by the Per Time Slot Control bits TTST
and RTST.If zero, a PRBS generator / detector will be connected to channels
with TTST, RRST respectively
Reserved. Must be kept at 0 for normal operation.
Table 96 - Configuration Control Word
Table 97 - Custom Tx Pulse Enable
Reserved. Must be kept high for normal operation.
Reserved. Must be kept low for normal operation.
Custom Pulse Level. Setting this bit low enables the internal ROM values
in generating the transmit pulses. The ROM is coded for different line
terminations or build out, as specified in the LIU Control word. Setting this
bit high disables the pre-programmed pulse templates. Each of the 4
phases that generate a mark derive their D/A coefficients from the values
programmed in the CPW registers.
Reserved. Must be kept at 0 for normal operation.
(Page 2, Address 10H) (E1)
(Page 2, Address 11H) (E1)
Zarlink Semiconductor Inc.
MT9074
103
Functional Description
Functional Description
Data Sheet