mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 319

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

15.1 Contents
15.2 Introduction
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
Data Sheet — MC68HC908LJ24
Section 15. Multi-Master IIC Interface (MMIIC)
15.2
15.3
15.4
15.5
15.5.1
15.5.2
15.5.3
15.5.4
15.5.5
15.5.6
15.6
This Multi-master IIC (MMIIC) Interface is designed for internal serial
communication between the MCU and other IIC devices. A hardware
circuit generates "start" and "stop" signal, while byte by byte data
transfer is interrupt driven by the software algorithm. Therefore, it can
greatly help the software in dealing with other devices to have higher
system efficiency in a typical digital monitor system.
This module not only can be applied in internal communications, but can
also be used as a typical command reception serial bus for factory setup
and alignment purposes. It also provides the flexibility of hooking
additional devices to an existing system for future expansion without
adding extra hardware.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Multi-Master IIC Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . 330
I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Multi-Master IIC Address Register (MMADR) . . . . . . . . . . 321
Multi-Master IIC Control Register (MMCR) . . . . . . . . . . . . 323
Multi-Master IIC Master Control Register (MIMCR) . . . . . . 324
Multi-Master IIC Status Register (MMSR) . . . . . . . . . . . . . 326
Multi-Master IIC Data Transmit Register (MMDTR) . . . . . . 328
Multi-Master IIC Data Receive Register (MMDRR) . . . . . . 329
Multi-Master IIC Interface (MMIIC)
Data Sheet
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