psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 200

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psb21381

Manufacturer Part Number
psb21381
Description
Siemens Codec With S/t Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
Data Sheet
RBC11-8
Four most significant bits of the total number of bytes in a received message.
Note: Normally RBCH and RBCL should be read by the microcontroller after an RME-
7.1.14
Value after reset: FF
TEI1
TEI1 ... Terminal Endpoint Identifier
In all message transfer modes except in transparent modes 0, 1 and extended
transparent mode, TEI1 is used for address recognition. In the case of a two-byte
address field, it contains the value of the first programmable Terminal Endpoint Identifier
according to the ISDN LAPD-protocol.
In non-auto-modes with one-byte address field, TEI1 is a command address, according
to X.25 LAPB.
EA
This bit is set to ’1’ according to HDLC/LAPD.
interrupt in order to determine the number of bytes to be read from the RFIFO, and
the total message length. The contents of the registers are valid only after an RME
or RPF interrupt, and remain so until the frame is acknowledged via the RMC bit
or RRES.
TEI1 - TEI1 Register 1
7
... Receive Byte Count
... Address field Extension bit
H
TEI1
190
Detailed Register Description
0
EA
PSB 21381/2
PSB 21383/4
2001-03-12
WR (27
H
)

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