參數(shù)資料
型號： MT9074
廠商： Mitel Networks Corporation
英文描述： T1/E1/J1 Single Chip Transceiver(T1/E1/J1單片收發(fā)器)
中文描述： T1/E1/J1收發(fā)單芯片收發(fā)器（T1/E1/J1收發(fā)單片收發(fā)器）
文件頁數(shù)： 72/120頁
文件大?。?/td> 362K
代理商： MT9074
MT9074
Advance Information
72
1- 0
X2, X3
These bits are transmitted on the
PCM 30 2048 kbit/sec. link in bit
positions
seven
respectively, of time slot 16 of
frame zero of every multiframe.
X2 and X3 are normally set to
one. If receive channel 16 data is
to be included in the looped data
then the control bit TxCCS (Page,
Address 14H, bit 5) must be set
high, otherwise transmit signaling
data, or HOLCC data will be
placed into the outgoing channel
16 timeslot.
and
eight
Bit
Name
Functional Description
7
DSToEn
DSTo Enable
. If zero pin DSTo is
tristate. If set, the pin DSTo is
enabled.
6
CSToEn
CSTo Enable
. If zero pin CSTo is
tristate. If set, the pin CSTo is
enabled.
5
TxCCS
Transmit
Signalling
. If one, the transmit
section of the device is in common
channel signalling (CCS) mode. If
zero, it is in Channel Associated
Signalling (CAS) mode.
Common
Channel
4
DBNCE,
Debounce Select
. This bit selects
the debounce period (1 for 14
msec.; 0 for no debounce). Note:
there may be as much as 2 msec.
added to this duration because
the state change of the signalling
equipment is not synchronous
with the PCM 30 signalling
multiframe.
Table 83 - Interrupt and Signalling Control Word
(E1)
(Page 1, Address 14H)
Bit
Name
Functional Description
Table 82 - Transmit Multiframe Alignment
Signal (E1)
(Page 1, Address 13H)
3
MSN
Most
Nibble
. If one, the CSTo and
CSTi
channel
signalling nibbles will be valid in
the most significant portion of
each ST-BUS time slot. If zero,
the CSTo and CSTi channel
associated signalling nibbles will
be valid in the least significant
portion of each ST-BUS time slot.
Significant
Signalling
associated
2-0
- - -
Unused
.
Bit
Name
Functional Description
7
RxHDB3
High Density Bipolar 3 Encoding
. If
one, HDB3 encoding is enabled in
the receive direction. If zero, AMI
signal without HDB3 encoding is
received
6
MLBK
Metallic Loopback
. If one, then the
external RRTIP and RRING signals
are isolated from the receiver, and
TTIP and TRING are internally
connected to the receiver analog
input instead. If zero, metallic
loopback is disabled.
5
TxHDB3
High Density Bipolar 3 Encoding
. If
one, HDB3 encoding is enabled in
the transmit direction. If zero, AMI
signal without HDB3 encoding is
transmitted.
4
- - -
Unused.
3
DLBK
Digital Loopback
. If one, then the
digital stream to the transmit LIU is
looped back in place of the digital
output of the receive LIU. Data
coming out of DSTo will be a delayed
version of DSTi. If zero, this feature is
disabled.
Table 84 - Coding and Loopback Control Word
(E1)
(Page 1, Address 15H)
Bit
Name
Functional Description
Table 83 - Interrupt and Signalling Control Word
(E1)
(Page 1, Address 14H)
相關(guān)PDF資料
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