mc9s12e256 Freescale Semiconductor, Inc, mc9s12e256 Datasheet - Page 298

• Manufacturer Part Number: mc9s12e256
• Description: Hcs12 Microcontrollers 16-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Inter-Integrated Circuit (IICV2)
10.1.3
The block diagram of the IIC module is shown in
10.2
The IICV2 module has two external pins.
10.2.1
This is the bidirectional serial clock line (SCL) of the module, compatible to the IIC bus specification.
10.2.2
This is the bidirectional serial data line (SDA) of the module, compatible to the IIC bus specification.
10.3
This section provides a detailed description of all memory and registers for the IIC module.
10.3.1
The memory map for the IIC module is given below in
the address offset.The total address for each register is the sum of the base address for the IIC module and
the address offset for each register.
298
External Signal Description
Memory Map and Register Definition
Block Diagram
IIC_SCL — Serial Clock Line Pin
IIC_SDA — Serial Data Line Pin
Module Memory Map
Interrupt
bus_clock
IIC
MC9S12E256 Data Sheet, Rev. 1.08
Registers
Figure 10-1. IIC Block Diagram
Clock
Control
Figure
Figure
Start
Stop
Arbitration
Control
Compare
Address
10-1.
In/Out
Data
Shift
Register
10-2. The address listed for each register is
Freescale Semiconductor
SCL
SDA