pef2256e Infineon Technologies Corporation, pef2256e Datasheet - Page 287

• Manufacturer Part Number: pef2256e
• Description: E1/t1/j1 Framer And Line Interface Component For Long- And Short-haul Applications
• Manufacturer: Infineon Technologies Corporation

Common Configuration Register 4 (Read/Write)
Value after reset: 00
CCR4
RADD3
RCRC3
XCRC3
ITF3
XMFA3
User’s Manual
Hardware Description
RADD3 RCRC3 XCRC3
Receive Address Pushed to RFIFO3
If this bit is set, the received HDLC channel 3 address information (1
or 2 bytes, depending on the address mode selected via
MODE3.MDS03) is pushed to RFIFO3. This function is applicable in
non-auto mode and transparent mode 1.
Receive CRC ON/OFF - HDLC Channel 3
Only applicable in non-auto mode.
If this bit is set, the received CRC checksum is written to RFIFO3
(CRC-ITU-T: 2 bytes). The checksum, consisting of the 2 last bytes in
the received frame, is followed in the RFIFO3 by the status
information byte (contents of register RSIS3). The received CRC
checksum will additionally be checked for correctness. If non-auto
mode is selected, the limits for “Valid Frame” check are modified.
Transmit CRC ON/OFF - HDLC Channel 3
If this bit is set, the CRC checksum will not be generated internally. It
has to be written as the last two bytes in the transmit FIFO (XFIFO3).
The transmitted frame is closed automatically with a closing flag.
Interframe Time Fill - HDLC Channel 3
Determines the idle (= no data to be sent) state of the transmit data
coming from the signaling controller.
0 =
1 =
Transmit Multiframe Aligned - HDLC Channel 3
Determines the synchronization between the framer and the
corresponding signaling controller.
0 =
1 =
H
Continuous logical "1" is output
Continuous flag sequences are output ("01111110" bit patterns)
The contents of the XFIFO3 is transmitted without multiframe
alignment.
The contents of the XFIFO3 is transmitted multiframe aligned.
287
ITF3
XMFA3
RFT13
DS1.1, 2003-10-23
PEF 2256 H/E
RFT03
E1 Registers
FALC
(8C)
®
56