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PEB2035-N

Advanced CMOS Frame Aligner ACFA

Siemens AG 

PEB 2035

1.3 Pin Definitions and Functions (cont’d)

P-LCC

Pin No.

6

P-DIP Symbol

Pin No.

4

RCHPY /

AFR

Input (I)

Output (O)

O

Function

Receive Channel Parity

Even/odd parity signal which supplements the

number of ones of a received channel to an even/

odd quantity while sending channel data to output

RDO. The parity type is programmed by bit

RC0.RPYS.

7

5

RFSPQ O

PCM 24: Additional Function Receive

If enabled via bit ACR.DLC, this output provides a

4-kHz signal which marks the DL-bit position

within the data stream on RDO. It can be used as

receive strobe signal for external data link

controllers.

Receive Frame Synchronous Pulse (active low)

Framing pulse derived from the received PCM

route signal. During loss of synchronization (bit

RSR.LOS), this pulse is suppressed (not

influenced during alarm simulation).

Pulse frequency: 8 kHz

Pulse width:

488 ns [PCM 30]

648 ns [PCM 24]

Semiconductor Group

11

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