mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 293
mc68hc908sr12
Manufacturer Part Number
mc68hc908sr12
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908SR12.pdf
(404 pages)
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17.3 Features
17.4 I/O Pins
MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
Features of the MMIC module include:
The MMIIC module uses four I/O pins, shared with standard port I/O
pins. The full name of the MMIIC I/O pins are listed in
generic pin name appear in the text that follows.
The SDA0/SCL0 and SDA1/SCL1 pins are open-drain. When configured
as general purpose output pins (PTB0–PTB3), pullup resistors must be
connected to these pins.
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Full SMBus version 1.0/1.1 compliance
Multi-master IIC bus standard
Software programmable for one of eight different serial clock
frequencies
Software controllable acknowledge bit generation
Interrupt driven byte by byte data transfer
Calling address identification interrupt
Arbitration loss detection and no-ACK awareness in master mode
and automatic mode switching from master to slave
Auto detection of R/W bit and switching of transmit or receive
mode accordingly
Detection of START, repeated START, and STOP signals
Auto generation of START and STOP condition in master mode
Repeated start generation
Master clock generator with eight selectable baud rates
Automatic recognition of the received acknowledge bit
Busy detection
Software enabled 8-bit CRC generation/decoding
Multi-Master IIC Interface (MMIIC)
Multi-Master IIC Interface (MMIIC)
Table
17-1. The
Data Sheet
Features
293
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