MC68HC908AS60ACFN FREESCALE [Freescale Semiconductor, Inc], MC68HC908AS60ACFN Datasheet - Page 205

• Manufacturer Part Number: MC68HC908AS60ACFN
• Description: M68HC08 Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Chapter 19
Serial Peripheral Interface (SPI)
19.1 Introduction
This chapter describes the serial peripheral interface (SPI) module, which allows full-duplex,
synchronous, serial communications with peripheral devices.
19.2 Features
Features of the SPI module include:
19.3 Pin Name and Register Name Conventions
The generic names of the SPI input/output (I/O) pins are:
The SPI shares four I/O pins with a parallel I/O port. The full name of an SPI pin reflects the name of the
shared port pin.
the text that follows.
Freescale Semiconductor
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Full-Duplex Operation
Master and Slave Modes
Double-Buffered Operation with Separate Transmit and Receive Registers
Four Master Mode Frequencies (Maximum = Bus Frequency ÷ 2)
Maximum Slave Mode Frequency = Bus Frequency
Serial Clock with Programmable Polarity and Phase
Two Separately Enabled Interrupts with CPU Service:
–
–
Mode Fault Error Flag with CPU Interrupt Capability
Overflow Error Flag with CPU Interrupt Capability
Programmable Wired-OR Mode
I
SS (slave select)
SPSCK (SPI serial clock)
MOSI (master out slave in)
MISO (master in slave out)
2
C (Inter-Integrated Circuit) Compatibility
SPRF (SPI Receiver Full)
SPTE (SPI Transmitter Empty)
SPI Generic Pin Name
Table 19-1
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Full SPI Pin Name
shows the full names of the SPI I/O pins. The generic pin names appear in
Table 19-1. Pin Name Conventions
PTE5/MISO
MISO
PTE6/MOSI
MOSI
PTE4/SS
SS
PTE7/SPSCK
SPSCK
205