peb2255 Infineon Technologies Corporation, peb2255 Datasheet - Page 224

• Manufacturer Part Number: peb2255
• Description: E1/t1/j1 Framer And Line Interface Component For Long And Short Haul Applications
• Manufacturer: Infineon Technologies Corporation

Line Interface Mode 3 (Read/Write)
Value after RESET: 00
CSC…
ESY…
System Interface Control 3 (Read/Write)
Value after RESET: 00
TTRF…
Data Sheet
SIC3
LIM3
7
7
Configure System Clock CLK16M/CLK12M
0…
1…
External Synchronization of DCO-X
Together with bit LOOP.SPN the functionality of pin 80 is defined:
Programming of LOOP.SPN and LIM3.ESY and the corresponding
pin function is shown below.
SPN/ESY:
TTR Register Function
Setting this bit the function of the TTR1...4 registers are changed. A
one in each TTR register forces the XSIGM marker high for the
respective time slot and controls sampling of the time slots provided
on pin XSIG. XSIG is selected by LOOP.SPN = 0 and LIM3.ESY = 0.
H
H
Dejittered XTAL1 or XTAL3 clock is output on CLK16M/
CLK12M.
Buffered XTAL1 or XTAL3 clock is output on CLK16M/
CLK12M.
00… function of pin 80 XSIG: If SIC3.TTRF = 1, transmit data
01… function of pin 80 SYNC2: external synchronization input
10… function of pin 80 ROID: Receive Optical Interface Data.
11… function of pin 80 XSIG: Transmit signaling input from the
from the system interface. No input function defined for
SIC3.TTRF = 0.
for the DCO-X circuitry.
transmit system interface.
224
TTRF
CSC
FALC-LH V1.3
ESY
DAF
E1 Registers
0
0
PEB 2255
2000-07
(3E)
(40)