XC161 Datasheet, PDF (222/419 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core Volume 2 (of 2): Peripheral Units

XC161 Derivatives
Peripheral Units (Vol. 2 of 2)
IIC-Bus Module
From the programmer’s point of view, the term ‘IIC-Bus Module’ refers to a set of
registers which are associated with this peripheral, including the port pins which may be
used for alternate input/output functions, and including their direction control bits.
Figure 20-3 shows the Special Function registers (SFRs) associated with the IIC-Bus
Module.
Data Registers
RTBL
RTBH
ADR
Control/Status Reg.
CON
CFG
ST
Interrupt Registers
DIC
PEIC
System Registers
P9
DP9
ODP9
ALTSEL0P9
ALTSEL1P9
SYSCON3
OPSEN
RTBL / RTBH
CON
CFG
ADR
DIC
PEIC
P9
DP9
ODP9
ALTSELxP9
SCU_SYSCON3
SCU_OPSEN
Receive / Transmit Buffer Register
Control Register
Configuration Register
Address Register
Data Interrupt Control Register
Protocol Event Interrupt Control Register
Port P9 Data Register
Port P9 Direction Control Register
Port P9 Open-Drain Control Register
Port P9 Alternate Output Select Register (x = 0, 1)
SCU System Control Register 3
SCU OCDS Peripheral Suspend Enable Register
MCA05465
Figure 20-3 SFRs Associated with the IIC-Bus Module
User’s Manual
IIC_X, V2.0
20-4
V2.2, 2004-01