pef80913 Infineon Technologies Corporation, pef80913 Datasheet - Page 97

• Manufacturer Part Number: pef80913
• Description: 2b1q Second Gen. Modular Isdn Nt
• Manufacturer: Infineon Technologies Corporation

•
Figure 45
2.4.8
The scrambling algorithm ensures that no sequences of permanent binary 0s or 1s are
transmitted. The scrambling / descrambling process is controlled fully by the Q-
SMINT I. Hence, no influence can be taken by the user.
2.4.9
The operational status of the U-transceiver is controlled by the Control/Indicate channel
(C/I-channel).
Data Sheet
TEST.CCRC = '1'
ISTAU.EOC=1
EOCR = 'NCC'
M56R.NEBE = '1'
M56R.FEBE = '1'
ISTAU.FEBE/
TEST.CCRC = '0'
ISTAU.EOC=1
EOCR = 'RTN'
ISTAU.FEBE/
ISTAU.EOC=1
EOCR = 'RTN'
ISTAU.EOC=1
EOCR = 'RCC'
Interface
NEBE=1
NEBE=1
µC
Scrambling/ Descrambling
C/I Codes
Block Error Counter Test
Transparent
ERROR
COUNT
ERROR
COUNT
NEBE
FEBE
EOC
DETECT
DETECT
Auto-Mode
DETECT
DETECT
ERROR
ERROR
ERROR
ERROR
FREE
FREE
STOP
STOP
EOC
83
EOC Acknowledge
EOC Acknowledge
EOC Acknowledge
EOC Acknowledge
Start Inverse
FEBE = "0"
Start Inverse
FEBE = "0"
End Inverse
End Inverse
EOC : NCC
EOC : RTN
EOC : RCC
EOC : RTN
CRC Bits
CRC Bits
CRC Bits
CRC Bits
U
ERROR
COUNT
ERROR
COUNT
NEBE
FEBE
LT
Functional Description
PEF 82912/82913
(MON-8) CCRC
(MON-0) NCC
(MON-0) ACK
(MON-8) ABEC
(MON-8) NORM
(MON-0) ACK
(MON-0) RCC
(MON-8) RBEN
(MON-8) ABEC
(MON-8) RBEF
(MON-0) RTN
(MON-0) ACK
(MON-0) RTN
IOM -2
ITD04226_QSMINT.emf
2001-03-30