peb2035 ETC-unknow, peb2035 Datasheet - Page 18

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

1.3
P-LCC
Pin No.
40
Semiconductor Group
Pin Definitions and Functions (cont’d)
P-DIP
Pin No.
36
Symbol
XSIGM /
XREQ
Input (I)
Output (O)
O
Function
Transmit Signaling Marker
Its function is equivalent to RSIGM for the data
stream at ports XDI and XSIG (XSIG: PCM 24
mode only).
Transmit Request
Its function is equivalent to RREQ for writing data
to the stack XSIG.
In dependance of bit EMOD.EDMA signal XREQ
will be cleared
– EDMA = 0: at the end of the first write access to
– EDMA = 1: with the beginning of the second
18
stack XSIG (rising edge of WRQ);
(PCM 30) or third (PCM 24) write access to
stack XSIG.XREQ is reset with the falling edge
of ACKNLQ or CEQ and remains reset if a write
cycle to stack XSIG follows. Otherwise, it
becomes active again until the second or third
access to XSIG is provided.
PEB 2035