S912XHZ512F1VAG Datasheet, PDF (481/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 13 Inter-Integrated Circuit (IICV3) Block Description
13.1.2 Modes of Operation
The IIC functions the same in normal, special, and emulation modes. It has two low power modes: wait
and stop modes.
13.1.3 Block Diagram
The block diagram of the IIC module is shown in Figure 13-1.
IIC
Registers
Interrupt
bus_clock
Clock
Control
Start
Stop
Arbitration
Control
In/Out
Data
Shift
Register
SCL
SDA
Address
Compare
Figure 13-1. IIC Block Diagram
MC9S12XHZ512 Data Sheet, Rev. 1.06
Freescale Semiconductor
481