Datasheet

Chapter 10 Inter-Integrated Circuit (IICV2)
MC9S12E128 Data Sheet, Rev. 1.07
300 Freescale Semiconductor
10.1.2 Modes of Operation
The IIC functions the same in normal, special, and emulation modes. It has two low power modes: wait
and stop modes.
10.1.3 Block Diagram
The block diagram of the IIC module is shown in Figure 10-1.
Figure 10-1. IIC Block Diagram
In/Out
Data
Shift
Register
Address
Compare
SDA
Interrupt
Clock
Control
Start
Stop
Arbitration
Control
SCL
bus_clock
IIC
Registers