PSB2115HV1.2 Lantiq, PSB2115HV1.2 Datasheet - Page 251

• Manufacturer Part Number: PSB2115HV1.2
• Manufacturer: Lantiq

Specifications of PSB2115HV1.2

• Lead Free Status / Rohs Status: Supplier Unconfirmed

Semiconductor Group
SA1-0 ... SAPI Address Identification
TA ... TEI Address Identification
SA1-0 are significant in auto-mode and non-auto-mode with a two-byte address field, as
well as in transparent mode 3. TA is significant in all modes except in transparent modes
2 and 3.
Two programmable SAPI values (SAP1, SAP2) plus a fixed group SAPI (SAPG of value
FC/FE
of value FF
The result of the address comparison is given by SA1-0 and TA, as follows:
Number of
Address
Bytes = 1
Number of
address
Bytes=2
Note: If the SAPI values programmed to SAP1 and SAP2 are identical the reception of
C/R ... Command/Response
The C/R-bit identifies a receive frame as either a command or a response, according to
the LAPD-rules:
a frame with SAP2/TEI2 results in the indication SA1=1, SA0=0, TA=1.
Normally RSTAD should be read by the processor after an RME-interrupt in order
to determine the status of the received frame. The contents of RSTAD are valid
only after an RME-interrupt, and remain so until the frame is acknowledged via the
RMC-bit.
H
), and two programmable TEI values (TEI1, TEI2) plus a fixed group TEI (TEIG
H
), are available for address comparison.
Command
0
1
SA1
x
x
0
0
0
0
1
1
1
SA0
x
x
0
0
1
1
0
0
1
Response
1
0
251
TA
0
1
0
1
0
1
0
1
x
Detailed Register Description
Address Match with
1
TEI2
TEI1
SAP2
SAP2
SAPG
SAPG
SAP1
SAP1
Direction
Subscriber to network
Network to subscriber
st
Byte
reserved
2
-
-
TEIG
TEI2
TEIG
TEI1 or TEI2
TEIG
TEI1
nd
PSB 2115
PSF 2115
Byte
11.97