pef82902 Infineon Technologies Corporation, pef82902 Datasheet - Page 168

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

CNT
VALUE
4.4.10
SAP1
Value after reset: FC
SAPI1
MHA
Data Sheet
Note: If CNT is set to 7, a TIN interrupt is indefinitely generated after every expiration
of T = T1.
7
SAP1 - SAPI1 Register
SAPI1 value
Value of the programmable high address byte. In ISDN LADP protocol (D-
channel) this is the Service Access Point Identifier (SAPI) and for B-channel
applications it is the RAH value.
Mask High Address
0 =
1 =
CNT together with VALUE determines the time period T after which
a TIN interrupt (ISTA) will be generated in the normal case:
CNT=0...6: T = CNT x 2.048 sec + T1 with T1 = (VALUE+1) x 0.064
sec
CNT=7: T = T1 = (VALUE+1) x 0.064 sec (generated periodically)
The timer can be started by setting the STI-bit in CMDR and will be
stopped when a TIN interrupt is generated or the TIMR register is
written.
Determines the time period T1
T1 = (VALUE + 1)
The high address of an incoming frame is compared with SAP1,
SAP2 and SAPG.
The high address of an incoming frame is compared with SAP1 and
SAPG.
SAP1 can be masked with SAP2. Bit positions of SAP1 are not
compared if they are set to ‘1’ in SAP2.
H
SAPI1
0.064 sec
write
154
Register Description
Address:
0
PEF 81902
2001-11-12
MHA
0
25
H