peb2256 Infineon Technologies Corporation, peb2256 Datasheet - Page 228

• Manufacturer Part Number: peb2256
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

IBV
Framer Mode Register 0 (Read/Write)
Value after reset: 00
FMR0
XC(1:0)
RC(1:0)
EXZE
ALM
Data Sheet
XC1
7
Transmit Code
Serial line code for the transmitter, independent of the receiver.
00 = NRZ (optical interface)
01 = CMI (1T2B+HDB3), (optical interface)
10 = AMI (ternary or digital dual-rail interface)
11 = HDB3 Code (ternary or digital dual-rail interface)
After changing XC(1:0), a transmitter software reset is required
(CMDR.XRES = 1).
Receive Code
Serial line code for the receiver, independent of the transmitter.
00 = NRZ (optical interface)
01 = CMI (1T2B+HDB3), (optical interface)
10 = AMI (ternary or digital dual-rail interface)
11 = HDB3 Code (ternary or digital dual-rail interface)
After changing RC(1:0), a receiver software reset is required
(CMDR.RRES = 1).
Extended HDB3 Error Detection
Selects error detection mode.
0 =
1 =
Alarm Mode
Selects the AIS alarm detection mode.
Note:Except for CRC defects, CRC checksum calculation is done
Insert bipolar violation
XC0
H
after defect insertion.
Only double violations are detected.
Extended code violation detection: 0000 strings are detected
additionally. Incrementing of the code violation counter CVC is
done after receiving four zeros. Errors are indicated by
FRS1.EXZD = 1.
RC1
RC0
228
EXZE
ALM
FRS
FALC56 V1.2
SIM
E1 Registers
0
PEB 2256
2002-08-27
(1C)