Operational Description
3.6
Initialization
During initialization a subset of registers have to be programmed to set the configuration
parameters according to the application and desired features. They are listed in table 19.
Table 19
Register (address) Bit
Effect
Application Restricted to
ADF2
(39 )
H
IMS
Program IOM-1 or IOM-2
interface mode
D2C2-0 Polarity of SDS2
D1C2-0 Polarity of SDS1
IOM-2
IOM-2
IOM-2
ODS
IOM output driver
tri-state/open drain
SPCR
(Note)
(30 )
H
SPU
Set the ISAC-S in standby by TE
requesting clocks (if CFS =
1, register ADF1/SQXR)
SAC
SPM
SLD port inactive/active
IOM-1
IOM-1
0 Timing mode 0
1 Timing mode 1
TE/NT
LT-S/LT-T
only
0 Terminal timing mode
TE
IOM-2
1 Non-terminal timing mode LT-S/LT-T
TLP
IOM interface test loop
C2C1-0 B-channel switching or
C1C1-0 B/IC channel connect
IOM-1
IOM-2
SQXR
(3B )
H
IDC
IOM Data Port IDP0,
1 direction control (must be
set to "0" for normal
operation)
IOM-2
IOM-2
CFS
0 Permanent standby
1 Power-down state
enabled
TE
0 S interface point-to-point LT-S/NT
1 S-bus configuration
Semiconductor Group
192
INFINEON [ Infineon ]
