peb2035 ETC-unknow, peb2035 Datasheet - Page 30

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

PEB 2035
3. Additional Functions
Signaling Support
Generation of all supporting signals to achieve simple access to signaling information (CCS, CAS-
CC, CAS-BR, FDL) at the system interface. In PCM 24 mode, the additional input XSIG is provided
for connection to a bit-robbed signaling controller. Furthermore, the controlling of the internal
signaling stacks is done by this unit.
For support of common PCM 24 applications, clear channels can be specified via the 3-byte register
bank CCB1 … CCB3.
Alarm Interrupt
Normally, the control of data transmission via the PCM line is done by polling the internal status
registers of the ACFA at equidistant time intervals.
However, for fast error handling the option exists to configure a specific output port as interrupt port
(AINT). This signal may be connected to an interrupt input of the board processor. Triggering of this
output may be caused by up to 11 (PCM 30) or 9 (PCM 24) maskable interrupt sources.
Single Channel Loop Back
As one of the extended test options, the single channel loop back enables reflection of a selected
channel back to the system interface at port RDO.
Idle Code Insertion
In transmit direction, the contents of selectable channels can be overwritten by the pattern defined
via register IDLE. The selection of 'idle channels' is done by programming the three/four-byte
register bank ICB1 … ICB3, ICB4.
Semiconductor Group
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