peb2035 ETC-unknow, peb2035 Datasheet - Page 22

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

Block Diagram
The ACFA comprises complete paths for receive and transmit direction for connecting the Primary
Access Line Interface Unit to the system internal PCM highway:
The Receive/Transmit Link Interface with encoder/decoder and alarm detectors connects the ACFA
to the Line Interface Unit (e.g. IPAT, PEB 2235/PEB 2236).
The Receiver/Transmitter perform frame alignment/synthesis, CRC checking/generation, alarm
and signaling extraction/insertion.
The Receive/Transmit Speech Memory compensates the wander and jitter of the assigned route
clock. Time-slot assignment to the system internal highway is also handled via this memory.
The parallel microprocessor interface can be used for controlling and monitoring of all functions and
alarms as well as extraction and insertion of signaling data. Additionally, a Direct Memory Access
(DMA) interface and bundel of specific signals enable powerful support for a varity of possible
external signaling controllers.
Semiconductor Group
ROID
XOID
XDOM
XDOP
XTOM
XTOP
RDIM
RDIP
1)
1)
Interface
Transmit
Interface
Receive
COS
Link
Link
Interrupt
Alarm
AINT
1)
Receiver
Trans-
mitter
RFSPQ
Ch. Loop
Register
RRCLK
Control
A 3-0
Timing Control
D 7-0
Parity
XRCLK
22
Parity
Register
P Bus
Status
RDQ WRQ CEQ RESQ
Check
1)
Gen.
SYPQ SCLK
Signaling
Transmit
Receive
Memory
Memory
Speech
Speech
Stacks
Parity
Parity Gen.
Signaling
Support
Check
ITB00548
ACKNLQ
RSIGM/RREQ
XSIGM/XREQ
RMFB
XMFB
RDO
RCHPY
DFPY
XDI
XSIG
XCHPY
PEB 2035
1)
1)
1)
1)
1)