peb22504 Infineon Technologies Corporation, peb22504 Datasheet - Page 81

• Manufacturer Part Number: peb22504
• Description: Quad Line Interface Unit For E1dt1dj1 Quadliu
• Manufacturer: Infineon Technologies Corporation

XLA
Loop Code Register 2 (Read/Write)
Addresses: 0F
Value after reset: 09
LCR2
LDC(7:0)
Loop Code Register 3 (Read/Write)
Addresses: 10
Value after reset: 01
LCR3
LAC(7:0)
Data Sheet
LDC7
LAC7
7
7
H
H
, 30
, 2F
Transmit LLB Activate (Up) Code
0 =
1 =
Line Loop-Back Deactivate Code
If enabled by bit LCR1.XLD, the LLB deactivate code is repeated
automatically until the LLB generator is stopped. Transmit data is
overwritten by the LLB code. LDC0 is transmittted last. If the selected
code length is less than 8 bits, the leftmost bits of LCR2 are ignored.
For correct operations, bit LIM3.XPRBS has to be cleared. The
default setting is [phone] (6-bit mode is default in LCR1). This
generates the standard deactivation code "001".
Line Loop-Back Activate Code
If enabled by bit LCR1.XLA, the LLB activate code is repeated
automatically until the LLB generator is stopped. Transmit data is
overwritten by the LLB code. LAC0 is transmittted last. If the selected
code length is less than 8 bits, the leftmost bits of LCR3 are ignored.
For correct operations, bit LIM3.XPRBS has to be cleared. The
H
H
H
H
, 50
, 4F
Normal operation (default)
Normal data is replaced by the LLB activate code continuously
until this bit is reset.
LCR1.XLD and LIM3.XPRBS must be cleared. LLB activate
code can be inserted in receive (LIM3.GTP = 0) or transmit
direction (LIM3.GTP = 1).
H
H
, 70
, 6F
H
H
81
Register Description
QuadLIU V1.1
LDC0
LAC0
0
0
PEB 22504
2001-02