參數(shù)資料
型號： MT9074AL
廠商： Mitel Networks Corporation
英文描述： T1/E1/J1 Single Chip Transceiver
中文描述： T1/E1/J1收發(fā)單芯片收發(fā)器
文件頁數(shù)： 73/122頁
文件大?。?/td> 372K
代理商： MT9074AL
Advance Information
MT9074
73
2
RLBK
Remote Loopback
. If one, then all
bipolar data received on RRTIP/
RRING are directly routed to TTIP/
TRING on the PCM 30 side of the
MT9074. If zero, then this feature is
disabled.
1
SLBK
ST-BUS Loopback
. If one, then all
time slots of DSTi are connected to
DSTo on the ST-BUS side of the
MT9074. If zero, then this feature is
disabled. See Loopbacks section.
0
PLBK
Payload Loopback
. If one, then all
time slots received on RTIP/RRING
are connected to TTIP/TRING on the
ST-BUS side of the MT9074 (this
excludes time slot zero). If zero, then
this feature is disabled. If receive
channel 16 data is to be included in
the looped data, then the control bit
TxCCS (Page 1, Address 14H, bit 5)
must be set high, otherwise transmit
signalling data, or HDLC1 data will
be placed into the outgoing channel
16 timeslot.
Bit
Name
Functional Description
7
- - -
Unused.
6
RxNFA
Receive Non-frame Alignment
Byte.
This
bit
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.
decides
the
Table 85 - Non Frame Alignment Control Word
(E1)
(Page 1, Address 16H)
Bit
Name
Functional Description
Table 84 - Coding and Loopback Control Word
(E1)
(Page 1, Address 15H)
5
TALM
Transmit Remote Alarm
. This bit
is transmitted on the PCM 30
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
PCM 30 link (one - alarm, zero -
normal). This control bit is ignored
when ARAI is zero (page 01H,
address 10H).
4-0
TNU4-8
Transmit National Use Four to
Eight (Sa4 - Sa8).
These bits are
transmitted on the PCM 30 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).
Bit
Name
Functional Description
7
- - -
Unused
6
MFSEL
Multiframe
determines
multiframe
signalling) the RxMF (pin 42 in
PLCC, 23 in MQFP) signal is
aligned with. If zero, RxMF is
aligned with the receive signalling
multiframe. If one, RxMF is aligned
with
the
receive
multiframe.
Select
.
which
signal
This
bit
receive
(CRC-4
or
CRC-4
5
- - - -
Unused
Table 86 - Multiframe and Data Link Selection
(E1)
(Page 1, Address 17H)
Bit
Name
Functional Description
Table 85 - Non Frame Alignment Control Word
(E1)
(Page 1, Address 16H)
相關PDF資料
PDF描述
MT9074AP T1/E1/J1 Single Chip Transceiver
MT9074 T1/E1/J1 Single Chip Transceiver(T1/E1/J1單片收發(fā)器)
MT9075B E1 Single Chip Transceiver
MT9075B E1 Single Chip Transceiver(E1單片收發(fā)器)
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