CM68HC05C4ACFB Motorola / Freescale Semiconductor, CM68HC05C4ACFB Datasheet - Page 81

• Manufacturer Part Number: CM68HC05C4ACFB
• Description: Microcontroller
• Manufacturer: Motorola / Freescale Semiconductor

General Release Specification — MC68HC05C4A
10.1 Contents
10.2 Introduction
MC68HC05C4A
MOTOROLA
—
Rev. 4.0
10.2
10.3
10.4
10.4.1
10.4.2
10.4.3
10.4.4
10.5
10.6
10.6.1
10.6.2
10.6.3
The serial peripheral interface (SPI) is an interface built into the
MC68HC05 MCU which allows several MC68HC05 MCUs or
MC68HC05 MCU plus peripheral devices to be interconnected within a
single printed circuit board. In an SPI, separate wires are required for
data and clock. In the SPI format, the clock is not included in the data
stream and must be furnished as a separate signal. An SPI system may
be configured in a system containing one master MCU and several slave
MCUs or in a system in which an MCU is capable of being a master or a
slave.
Section 10. Serial Peripheral Interface (SPI)
Introduction ...............................................................................81
Features....................................................................................82
SPI Signal Description ..............................................................82
Functional Description ..............................................................84
SPI Registers............................................................................86
Master In Slave Out (MISO) ................................................82
Master Out Slave In (MOSI) ................................................82
Serial Clock (SCK) ..............................................................83
Slave Select (SS) ................................................................84
Serial Peripheral Control Register.......................................87
Serial Peripheral Status Register ........................................88
Serial Peripheral Data I/O Register .....................................90
Serial Peripheral Interface (SPI)
General Release Specification
81