peb2035 ETC-unknow, peb2035 Datasheet - Page 98

• Manufacturer Part Number: peb2035
• Description: Communications Advanced Cmos Frame Aligner
• Manufacturer: ETC-unknow

EXLS ... External Loss Of Frame
SIM ... Alarm Simulation
Mode Register (WRITE)
MODE
CTM ... Select Channel Translation Mode
SIGM ... Select Signaling Mode
Semiconductor Group
0 ... Channel translation mode 0
1 ... Channel translation mode 1
0 ... CCS/CAS-CC mode
1 ... CAS-BR mode
With a low to high transition a new frame search will be started. This has the meaning of a
general reset of the internal frame alignment unit. Synchronous state is reached only if there
is one definite framing candidate. In the case of multiple candidates, the setting of the bit
CCR.FRS forces the receiver to lock onto the next available framing position.
Setting/resetting this bit initiates internal error simulation of: AIS, no signal, loss of
synchronization, slip, parity, framing errors, CRC errors, code violations. The error counters
FEC, CVC, CEC will be incremented.
The selection of simulated alarms is done via the error simulation counter: ASR.SC which
will be incremented with each setting of bit CCR.SIM. For complete checking of the alarm
indications eight simulation steps are necessary (ASR.SC = 0 after a complete simulation).
For selection of clear channels refer to bit CPY.SWTCH and Clear Channel Banks
CCB1 ... CCB3.
7
CTM
SIGM
CODE PMOD
98
CRC
OPT
IMOD
XAIS
0
PEB 2035
(01)