STLC5460
RECEIVE COMMAND/INDICATE STATUS REGISTER (RCIS)
EVENT
7
0
EVENT RRP
OVR
0
MO
G2
G1
G0
After Reset 00 (H)
EVENT = 1.
A primitive has been received twice identically. The number of Command/Indicate
channels is give by MO, G2, G1, G0.
RRP
OVR
MO
G 0/2
Read Receive Primitive
RRP = 1 the mp has to read the primitive received in order to allow the next on to be
processed.
OVERRUN
OVR = 1. The previous primitive has not been read by the microprocessor.
If MO = 0, Multiplex 0
if MO = 1, Multiplex 1.
GCI 0 to GCI 7 channel of each multiplex.
TEST REGISTER (TEST)
FWD
WITG
‘
DCA
SAV
LP
PRSC
DCG
SGV
7
0
FWD
WITG
DCA
SAV
LP
PRSC
DCG
SGV
After Reset 00 (H)
False Word Detection
FWD = 1, the counter indicates the number of wrong bytes
FWD = 0, the counter indicates the number of wrong bits.
Word integrity.
WITG = 1. The first bit of the Pseudo Random Sequence (2*11-1) is the firstbit of the
channel (or subchannel) selected in the Time Slot at the beginning of the transmission.
WITG = 0. The first bit of the PRS is transmitted without taking into accountthe place
in the Time Slot.
Double channel for analyser.
DCA = 1. The analyser receives Pseudo Random Sequence from two channels.
DCA = 0. The analyser receives Pseudo Random Sequence from one channel.
Sequence Analyser Validation. When this bit goes to ”1”, the Analyser of Pseudo
Random Sequence (2*11-1) is connected instead of Extract A Register i f DCA = 0,
instead of Extract A and Extract B registers if DCA = 1. Then the synchronisation is
researched.
When SAV = 0, the analyser is initiated.
NB : When DCA= 0, Insert B register can be used normally.
Loopback.
When LP = 1, the six data streams going out (PCM 0/3 and MUX 0/1) are respectively
connected instead of data stream coming from the 6 inputs (PCM 0/3 and MUX 0/1).
The loopback is transparent or not, depending on M0D,M1D, P0E, P1E, P2E, P3E
bits of Multiplex and PCM Configuration Registers.
Pseudo Random Sequence Corrupted.
When this bit changes from 0 to 1, one PRS bit is corrupted if DCG = 0, two PRS bits
are corrupted if DCG = 1 (one bit in each channel). After transmitting corrupted bit(s),
PRSC changes from ”1” to” 0”.
Double channel for Generator.
DCG = 1. The generator transmits Pseudo Random Sequence to two channels.
DCG = 0. The generator transmits Pseudo Random Sequence to one channel.
Sequence Generator Validation.
When this bit goes to ”1”, the generator provides Pseudo Random Binary Sequence
2 * 11-1 in accordance with CCITT Recommendation O.152. The generator is
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