pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 118

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

The T-SMINT
by means of a RPF interrupt (see previous chapter). User data is stored in the RFIFO
and information about the received frame is available in the RSTA, RBCL and RBCH
registers which are listed in
Table 26
Information
Type of frame
(Command/
Response)
Recognition of SAPI
Recognition of TEI
Result of CRC check
(correct/incorrect)
Valid Frame
Abort condition detected
(yes/no)
Data overflow during reception of
a frame (yes/no)
Number of bytes received in
RFIFO
Message length
RFIFO Overflow
The RSTA register is appended as last byte to the end of a frame.
2.6.3
2.6.3.1
The 64-byte cyclic XFIFO buffer has variable FIFO block sizes (thresholds) of 16 or 32
bytes, selectable by the XFBS bit in the EXMR register.
There are three different interrupt indications in the ISTAH register concerned with the
transmission of data:
Data Sheet
Data Transmission
Structure and Control of the Transmit FIFO
â
Receive Information at RME Interrupt
IX indicates to the host that a new data block can be read from the RFIFO
Table
26.
Register
RSTA
RSTA
RSTA
RSTA
RSTA
RSTA
RBCL
RBCL
RBCH
RBCH
RSTA
104
Bit
C/R
SA1, 0
TA
CRC
VFR
RAB
RDO
RBCx-0
RBC11-0
OV
Mode
Non-auto mode,
2-byte address field
Transparent mode 1
Non-auto mode,
2-byte address field
Transparent mode 1
All except transparent
mode 0 and 1
All
All
All
All
All
(see
All
All
Functional Description
Table
25)
PEF 81902
2001-11-12