MC9S12XD256MAL Datasheet, PDF (396/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

Chapter 9 Inter-Integrated Circuit (IICV2) Block Description
9.1.2 Modes of Operation
The IIC functions the same in normal, special, and emulation modes. It has two low power modes: wait
and stop modes.
9.1.3 Block Diagram
The block diagram of the IIC module is shown in Figure 9-1.
IIC
Registers
Interrupt
bus_clock
Clock
Control
Start
Stop
Arbitration
Control
In/Out
Data
Shift
Register
SCL
SDA
Address
Compare
Figure 9-1. IIC Block Diagram
MC9S12XDP512 Data Sheet, Rev. 2.21
396
Freescale Semiconductor