MC9S12HZ256 Datasheet, PDF (310/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 11 Inter-Integrated Circuit (IICV2)
11.1.2 Modes of Operation
The IIC functions the same in normal, special, and emulation modes. It has two low power modes: wait
and stop modes.
11.1.3 Block Diagram
The block diagram of the IIC module is shown in Figure 11-1.
IIC
Registers
Interrupt
bus_clock
Clock
Control
Start
Stop
Arbitration
Control
In/Out
Data
Shift
Register
SCL
SDA
Address
Compare
Figure 11-1. IIC Block Diagram
MC9S12HZ256 Data Sheet, Rev. 2.04
310
Freescale Semiconductor