MC9S12KG128_10 Datasheet, PDF (251/606 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 8 Inter-Integrated Circuit (IICV2) Block Description
8.1.2 Modes of Operation
The IIC functions the same in normal, special, and emulation modes. It has two low power modes: wait
and stop modes.
8.1.3 Block Diagram
The block diagram of the IIC module is shown in Figure 8-1.
IIC
Registers
Interrupt
bus_clock
Clock
Control
Start
Stop
Arbitration
Control
In/Out
Data
Shift
Register
SCL
SDA
Address
Compare
Figure 8-1. IIC Block Diagram
MC9S12KG128 Data Sheet, Rev. 1.16
Freescale Semiconductor
251