pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 172

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

VFR
RDO
CRC
RAB
SA1-0
TA
Data Sheet
VFR
7
Valid Frame
Determines whether a valid frame has been received.
A frame is invalid when there is not a multiple of 8 bits between flag and
frame end (flag, abort).
0 =
1 =
Receive Data Overflow
0 =
1 =
CRC Check
0 =
1 =
Receive Message Aborted
0 =
1 =
SAPI Address Identification
TEI Address Identification
RDO
The frame is invalid
The frame is valid
No receive data overflow
At least one byte of the frame has been lost, because it could not
be stored in RFIFO. As opposed the ISTAH.RFO a RDO indicates
that the beginning of a frame has been received but not all bytes
could be stored as the RFIFO was temporarily full.
The CRC is incorrect
The CRC is correct
The receive message was not aborted
The receive message was aborted by the remote station, i.e. a
sequence of seven 1’s was detected before a closing flag.
CRC
RAB
158
SA1
SA0
Register Description
C/R
PEF 81902
2001-11-12
TA
0