psf2115 ETC-unknow, psf2115 Datasheet - Page 247
psf2115
Manufacturer Part Number
psf2115
Description
Isdn Adapter Circuit Ipac
Manufacturer
ETC-unknow
Datasheet
1.PSF2115.pdf
(317 pages)
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Part Number:
psf21150FV1.4
Manufacturer:
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Semiconductor Group
4.3.10
Value after reset: (not defined)
XAD1
Used in auto mode only.
XAD1 contains a programmable address byte which is appended automatically to the
frame by the IPAC in auto mode. Depending on the selected address mode XAD1 is
interpreted as follows:
2-Byte Address Field
XAD1 is the high byte (SAPI in the ISDN) of the 2-byte address field. Bit 1 is interpreted
as the command/response bit “C/R”. It is automatically generated by the IPAC following
the rules of ISDN LAPD protocol and the CRI bit value in SAP1 register. Bit 1 has to be
set to “0”.
In the ISDN LAPD the address field extension bit “EA”, i.e. bit 0 of XAD1 has to be set to
“0”.
or
1-Byte Address Field
According to the X.25 LAPB protocol, XAD1 is the address of a command frame.
Note: In standard ISDN applications only 2-byte address fields are used.
XAD1 - Transmit Address 1 (Write)
7
C/R Bit
Command
0
1
Response
1
0
247
Transmitting End
subscriber
network
Detailed Register Description
0
CRI Bit
0
0
PSB 2115
PSF 2115
11.97
(A4)
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