pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 206

• Manufacturer Part Number: pef82902
• Description: 4b3t Second Generation Modular Isdn Nt Intelligent Extended
• Manufacturer: Infineon Technologies Corporation

UCI
4.9.2
Via the U-transceiver C/I code Read register a microcontroller can access the C/I code
that is output from the state machine.
UCIR
Reset value: 00
4.9.3
The U-transceiver C/I code Write register allows a microcontroller to control the state of
the U-transceiver. To enable this function bit UCI in register OPMODE must be set to ’1’
before.
UCIW
Reset value: 01
4.9.4
The Loop register controls local digital loopbacks of the U-transceiver.
Data Sheet
7
0
7
0
UCIR - C/I Code Read Register
UCIW - C/I Code Write Register
LOOP - Loopback Register
Enable/Disable µP-control of C/I codes
0 =
1 =
H
H
6
0
6
0
µP control disabled - C/I codes are exchanged via IOM
Read access to register UCIR by the P is still possible
µP control enabled - C/I codes are exchanged via UCIR and UCIW
registers
In this case, the according C/I-channel on IOM
5
0
5
0
4
0
4
0
read
write
192
3
3
C/I code output
C/I code input
2
2
Register Description
®
-2 is idle ‘1111‘
Address:
1
Address:
1
PEF 81902
®
-2
2001-11-12
0
0
6D
6E
H
H