XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 286

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

Serial Peripheral Interface (SPI)
19.2 Introduction
19.3 Features
Technical Data
286
19.13.3 SPSCK (Serial Clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
19.13.4 SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
19.13.5 V
19.14 I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
19.14.1 SPI Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
19.14.2 SPI Status and Control Register . . . . . . . . . . . . . . . . . . . 312
19.14.3 SPI Data Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
This section describes the serial peripheral interface (SPI) module,
which allows full-duplex, synchronous, serial communications with
peripheral devices.
Features of the SPI module include:
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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:
– SPRF (SPI Receiver Full)
– SPTE (SPI Transmitter Empty)
Mode Fault Error Flag with CPU Interrupt Capability
Overflow Error Flag with CPU Interrupt Capability
Programmable Wired-OR Mode
I
2
C (Inter-Integrated Circuit) Compatibility
Serial Peripheral Interface (SPI)
SS
(Clock Ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
MC68HC908AZ60A — Rev 2.0
MOTOROLA