mc68hc908sr12 Freescale Semiconductor, Inc, mc68hc908sr12 Datasheet - Page 17
mc68hc908sr12
Manufacturer Part Number
mc68hc908sr12
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC908SR12.pdf
(404 pages)
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MC68HC908SR12•MC68HC08SR12 — Rev. 5.0
Freescale Semiconductor
16.6
16.6.1
16.6.2
16.7
16.8
16.8.1
16.8.2
16.9
16.9.1
16.9.2
16.9.3
16.9.4
16.9.5
16.9.6
16.9.7
17.1
17.2
17.3
17.4
17.5
17.6
17.6.1
17.6.2
17.6.3
17.6.4
17.6.5
17.6.6
17.6.7
17.6.8
17.6.9
17.7
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
SCI During Break Module Interrupts. . . . . . . . . . . . . . . . . . . .272
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .291
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Multi-Master IIC System Configuration . . . . . . . . . . . . . . . . . . 295
Multi-Master IIC Bus Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 295
MMIIC I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Section 17. Multi-Master IIC Interface (MMIIC)
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .271
TxD (Transmit Data). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
RxD (Receive Data) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
SCI Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
SCI Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
SCI Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
SCI Status Register 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
SCI Status Register 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
SCI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
SCI Baud Rate Register . . . . . . . . . . . . . . . . . . . . . . . . . . .288
START Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Slave Address Transmission . . . . . . . . . . . . . . . . . . . . . . .296
Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Repeated START Signal . . . . . . . . . . . . . . . . . . . . . . . . . . 297
STOP Signal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Arbitration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Clock Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Packet Error Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
Table of Contents
Table of Contents
Data Sheet
17
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