Freescale Semiconductor Demonstration Board for Freescale MC9S08SE8 DEMO9S08EL32AUTO DEMO9S08EL32AUTO Data Sheet
Product codes
DEMO9S08EL32AUTO
Inter-Integrated Circuit (S08IICV2)
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
Freescale Semiconductor
167
11.1.2
Features
The IIC includes these distinctive features:
•
Compatible with IIC bus standard
•
Multi-master operation
•
Software programmable for one of 64 different serial clock frequencies
•
Software selectable acknowledge bit
•
Interrupt driven byte-by-byte data transfer
•
Arbitration lost interrupt with automatic mode switching from master to slave
•
Calling address identification interrupt
•
Start and stop signal generation/detection
•
Repeated start signal generation
•
Acknowledge bit generation/detection
•
Bus busy detection
•
General call recognition
•
10-bit address extension
11.1.3
Modes of Operation
A brief description of the IIC in the various MCU modes is given here.
•
Run mode — This is the basic mode of operation. To conserve power in this mode, disable the
module.
module.
•
Wait mode — The module continues to operate while the MCU is in wait mode and can provide
a wake-up interrupt.
a wake-up interrupt.
•
Stop mode — The IIC is inactive in stop3 mode for reduced power consumption. The stop
instruction does not affect IIC register states. Stop2 resets the register contents.
instruction does not affect IIC register states. Stop2 resets the register contents.