
MT9071
Preliminary Information
176
Bit
Name
Functional Description
15-10 (#### ##) Not Used
9
RPCI(n)
(0)
Receive Per Channel inversion.
If one, the data received from the incoming PCM30 channel
is inverted before it emerges from the corresponding DSTo channel. If zero, this feature is
disabled.
Micro Port Data Receive.
If one, the receive idle code data register bits RXIDC7-0 (See Table
97 - E1 Receive Idle Code Data - R/W Address Y09) replace the normal DSTo channel data. If
zero, this feature is disabled.
Micro Port Signaling Transmit.
If one, the transmit CAS bits (A,B,C,D) are sourced from the
transmit CAS data register bits TAn, TBn TCn & TDn (see Table 163 - E1 Transmit CAS Data
Registers - R/W Address Y51-Y5F & Y61-Y6F) instead of the CSTi channel serial data stream.
If zero, this feature is disabled.
Transmit Per Channel inversion.
If one, the data sourced from the DSTi channel is inverted
before being transmitted onto the PCM30 channel. If zero, this feature is disabled.
Remote Timeslot Loopback.
If one, the data received on the RTIP/RRNG channel is looped
back to the transmit TTIP/TRNG channel. The received channel is also present on DSTo. If
zero, this feature is disabled. See Section 16.0 Loopbacks.
Local Timeslot Loopback.
If one, the data sourced from the DSTi channel is looped back to
the DSTo channel. The transmitted channel is also present on TTIP/TRNG. If zero, this feature
is disabled. See Section 15.0 Loopbacks.
Transmit Test.
If one, the a-law digital milliwatt (if control bit ADSEQ is one, see Table 81 - E1
Test, Error and Loopback Control - R/W Address Y01) or a PRBS generator (if control bit
ADSEQ is zero) will be transmitted in the corresponding PCM30 channel. More than one
channel may be activated at once. If zero, this feature is disabled.
Receive Test.
If one, the a-law digital milliwatt (if control bit ADSEQ is one, see Table 81 - E1
Test, Error and Loopback Control - R/W Address Y01) or a PRBS detector (if control bit
ADSEQ is zero) will be transmitted in the corresponding DSTo channel. More than one channel
may be activated at once. If zero, this feature is disabled.
Micro Port Data Transmit.
If one, the transmit idle code data register bits TXIDC7-0 (See
Table 99 - E1 Transmit Idle Code Data - R/W Address Y0A) replace the normal PCM30
channel data. If zero, this feature is disabled.
Not Used
8
MPDR(n)
(0)
7
MPST(n)
(0)
6
TPCI(n)
(0)
RTSL(n)
(0)
5
4
LTSL(n)
(0)
3
TTST(n)
(0)
2
RRST(n)
(0)
1
MPDT(n)
(0)
0
(#)
Note 1: Address Y90-YAF corresponds to n=0 to n=31 which corresponds to PCM30 timeslot 0 to 31.
Note 2: For timeslot 0, address Y90, set all control bits to 0.
Table 167 - E1 Per Timeslot 0 to 31 Control Registers - R/W Address Y90-YAF
Bit
Name
Functional Description
15-8 (#### ####) Not Used
Transmit National Bit SanTm (n = 4 to 8, m = 1, 3, 5 etc. to 15).
This bit is transmitted on
the PCM30 link, in bit position n of Timeslot 0 during Frame m of NFAS frames when CRC-4
multiframe alignment is used, or of consecutive odd frames when CRC-4 multiframe
alignment is not used. Bit SanTm is sourced from register address YBn as follows.
Table 168 - E1 Transmit National Bits Sa4 - Sa8 Data Registers - R/W Address YB0-YB4