PSF21150 INFINEON [Infineon Technologies AG], PSF21150 Datasheet - Page 240

• Manufacturer Part Number: PSF21150
• Description: IPAC-X ISDN PC ADAPTER CIRCUIT
• Manufacturer: INFINEON [Infineon Technologies AG]

RAB ... Receive Message Aborted
The receive message was aborted by the remote station (1), i.e. a sequence of seven
1’s was detected before a closing flag.
HA1, HA0 … High Byte Address Compare; significant only in non automode 16
and in transparent mode 1
In operating modes which provide high byte address recognition, the IPAC-X compares
the high byte of a 2-bytes address with the contents of two individual programmable
registers (RAH1, RAH2) and the fixed values FE
Depending on the result of this comparison, the following bit combinations are possible:
10 … RAH1 has been recognized
00 … RAH2 has been recognized
01 … group address has been recognized
C/R ... Command/Response
The C/R bit contains the C/R bit of the received frame (Bit1 in the SAPI address, LAPD)
LA … Low Byte Address Compare; significant only in non automodes 8 and 16 and
in transparent mode 2
The low byte address of a 2-byte address field, or the single address byte of a 1-byte
address field is compared with two programmable registers (RAL1, RAL2) and with the
group address (fixed value FF
0 … Group address has been recognized
1 … RAL1 or RAL2 has been recognized
Note: RSTAB corresponds to the last received HDLC frame; it is duplicated into RFIFOB
Data Sheet
for every frame (last byte of frame).
If several frames are contained in the RFIFOB the corresponding status
information for each frame should be evaluated from the FIFO contents (last byte)
as RSTAB only refers to last frame in the FIFO.
H
)
240
H
and FC
Detailed Register Description
H
(group address).
PSB 21150
PSF 21150
2000-07-21