psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 185

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

RAC
The HDLC receiver is activated when this bit is set to ’1’. If it is ’0’ the HDLC data is not
evaluated in the receiver.
DIM2-0
These bits define the characteristics of the IOM Data Ports (DU, DD). The DIM0 bit
enables/disables the collission detection. The DIM1 bit enables/disables the TIC bus
access. The effect of the individual DIM bits is summarized in table 25.
Table 25
IOM
7.0.7
Value after reset: 00
EXMR
XFBS
0: Block size for the transmit FIFO data is 32 byte
1: Block size for the transmit FIFO data is 16 byte
Note: A change of XFBS will take effect after a transmitter command (CMDR.XME,
RFBS
RFBS
Bit6
0
0
Data Sheet
DIM2
0
0
0
0
1
®
-2 Terminal Modes
CMDR.XRES, CMDR.XTF) has been written
DIM1
RFBS
Bit5
0
1
0
1
x
x
x
EXMR- Extended Mode Register
7
XFBS
DIM0
... Receiver Active
... Digital Interface Modes
… Transmit FIFO Block Size
… Receive FIFO Block Size
0
1
x
x
x
Block Size
Receive FIFO
32 byte
16 byte
H
Characteristics
Transparent D-channel, the collission detection is disabled
Stop/go bit evaluated for D-channel access handling
Last octet of IOM channel 2 used for TIC bus access
TIC bus access is disabled
Reserved
RFBS
SRA XCRC RCRC
175
Detalled Register Description
0
0
ITF
RD/WR (23
PSB 21391
PSB 21393
2001-03-07
H
)