MC68HC705C Motorola, MC68HC705C Datasheet - Page 137
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MC68HC705C
Manufacturer Part Number
MC68HC705C
Description
HCMOS Microcontroller Unit
Manufacturer
Motorola
Datasheet
1.MC68HC705C.pdf
(222 pages)
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11.1 Contents
11.2 Introduction
MC68HC705C8A — Rev. 2.0
MOTOROLA
Technical Data — MC68HC705C8A
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Multiple-SPI Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Serial Clock Polarity and Phase . . . . . . . . . . . . . . . . . . . . . . .144
SPI Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
SPI Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
SPI I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
Pin Functions in Master Mode . . . . . . . . . . . . . . . . . . . . . .141
Pin Functions in Slave Mode . . . . . . . . . . . . . . . . . . . . . . .142
Mode Fault Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Write Collision Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .145
Overrun Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .146
SPI Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
SPI Control Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147
SPI Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
Serial Peripheral Interface (SPI)
Technical Data
137