mc68hc11k4 Freescale Semiconductor, Inc, mc68hc11k4 Datasheet - Page 167

• Manufacturer Part Number: mc68hc11k4
• Description: Mc68hc11k1 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

8.1 Contents
8.2 Introduction
M68HC11K Family
MOTOROLA
Technical Data — M68HC11K Family
8.2
8.3
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.5
8.5.1
8.5.2
8.6
8.6.1
8.6.2
8.6.3
8.6.4
8.6.5
The serial peripheral interface (SPI) provides synchronous
communication between the MCU and peripheral devices such as
transistor-transistor logic (TTL) shift registers, liquid crystal display
(LCD) drivers, analog-to-digital (A/D) converter subsystems, and other
processors. Synchronous communication requires a clock and, in the
M68HC11 series, a slave-select signal, but provides substantially faster
communication than the asynchronous SCI, which does not require this
Section 8. Serial Peripheral Interface (SPI)
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
SPI Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
SPI Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
SPI System Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
SPI Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
Master In Slave Out (MISO) . . . . . . . . . . . . . . . . . . . . . . . . 170
Master Out Slave In (MOSI) . . . . . . . . . . . . . . . . . . . . . . . . 170
Serial Clock (SCK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Slave Select (SS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
SPI Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Mode Fault Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
Write Collision Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Serial Peripheral Control Register . . . . . . . . . . . . . . . . . . . 174
Serial Peripheral Status Register . . . . . . . . . . . . . . . . . . . . 176
Serial Peripheral Data Register . . . . . . . . . . . . . . . . . . . . . 177
Port D Data Direction Register . . . . . . . . . . . . . . . . . . . . . . 178
System Configuration Options 2. . . . . . . . . . . . . . . . . . . . . 179
Serial Peripheral Interface (SPI)
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Technical Data
167