PSF21150 INFINEON [Infineon Technologies AG], PSF21150 Datasheet - Page 144

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

Transparent mode 0 (MDS2-0 = ’110’).
Characteristics:
Every received frame is stored in RFIFOx (first byte after opening flag to CRC field).
Additional information can be read from RSTAx.
Transparent mode 1 (MDS2-0 = ’111’).
Characteristics:
A comparison is performed on the first byte after the opening flag with SAP1, SAP2 and
“group” SAPI (FE
FC
Additional information can be read from RSTAx.
Transparent mode 2 (MDS2-0 = ’101’).
Characteristics:
A comparison is performed only on the second byte after the opening flag, with TEI1,
TEI2 and group TEI (FF
case of a match the rest of the frame is stored in the RFIFOx. Additional information is
available in RSTAx.
Extended transparent mode (MDS2-0 = ’100’).
Characteristics:
In extended transparent mode fully transparent data transmission/reception without
HDLC framing is performed i.e. without FLAG generation/recognition, CRC generation/
check, bitstuffing mechanism. This allows user specific protocol variations.
Also refer to
Data Sheet
H
) for B-channel. In the case of a match, all the following bytes are stored in RFIFOx.
Chapter
H
/FC
SAPI recognition (D-channel)
TEI recognition (D-channel)
Fully transparent
No address recognition
High byte address recognition (B-channel)
Low byte address recognistion (B-channel)
3.9.5.
H
) for D-channel, and with RAH1, RAH2 and group address (FE
H
) for D-channel, and with RAL1 and RAL2 for B-channel. In
144
Description of Functional Blocks
PSB 21150
PSF 21150
2000-07-21
H
/