mc68hc705c4acfn Freescale Semiconductor, Inc, mc68hc705c4acfn Datasheet - Page 133
mc68hc705c4acfn
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mc68hc705c4acfn
Description
M68hc05 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC705C4ACFN.pdf
(210 pages)
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11.1 Contents
11.2 Introduction
MC68HC705C4A • MC68HSC705C4A — Rev. 3.0
MOTOROLA
Technical Data — MC68HC705C4A • MC68HSC705C4A
Section 11. Serial Peripheral Interface (SPI)
11.2
11.3
11.4
11.4.1
11.4.2
11.5
11.6
11.7
11.7.1
11.7.2
11.7.3
11.8
11.9
11.9.1
11.9.2
11.9.3
The serial peripheral interface (SPI) module allows full-duplex,
synchronous, serial communication with peripheral devices.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Multiple-SPI Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Serial Clock Polarity and Phase . . . . . . . . . . . . . . . . . . . . . . .140
SPI Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
SPI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .142
SPI I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Pin Functions in Master Mode . . . . . . . . . . . . . . . . . . . . . . 137
Pin Functions in Slave Mode . . . . . . . . . . . . . . . . . . . . . . .138
Mode Fault Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Write Collision Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Overrun Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
SPI Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
SPI Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
SPI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Serial Peripheral Interface (SPI)
Technical Data
133
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