PSB21383H Datasheet, PDF (196/270 Pages) Infineon Technologies AG – Siemens Codec with S/T Transceiver

PSB 21381/2
PSB 21383/4
Detailed Register Description
RAC
... Receiver Active
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
... Digital Interface Modes
These bits define the characteristics of the IOM Data Ports (DU, DD). The DIM0 bit
enables/disables the collision detection. The DIM1 bit enables/disables the TIC bus
access. The effect of the individual DIM bits is summarized in table 27.
Table 27
IOM^®-2 Terminal Modes
DIM2 DIM1 DIM0 Characteristics
0
x
0 Transparent D-channel, the collision detection is disabled
0
x
1 Stop/go bit evaluated for D-channel access handling
0
0
x Last octet of IOM channel 2 used for TIC bus access
0
1
x TIC bus access is disabled
1
x
x Reserved
7.1.8 EXMR- Extended Mode Register
Value after reset: 00_H
EXMR
7
XFBS
RFBS
SRA XCRC RCRC
0
0
ITF RD/WR (23_H)
XFBS
… Transmit FIFO Block Size
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,
CMDR.XRES, CMDR.XTF) has been written
Data Sheet
186
2001-03-12