MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 250

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Peripheral Interface (SPI)
17.2 Introduction
17.3 Features
Advance Information
250
17.12.3 SPSCK (Serial Clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
17.12.4 SS (Slave Select) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
17.12.5 VSS (Clock Ground) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
17.13 I/O Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
17.13.1 SPI Control Register (SPCR) . . . . . . . . . . . . . . . . . . . . . .274
17.13.2 SPI Status and Control Register (SPSCR) . . . . . . . . . . . 276
17.13.3 SPI Data Register (SPDR) . . . . . . . . . . . . . . . . . . . . . . . . 280
This section describes the serial peripheral interface module (SPI),
which allows full-duplex, synchronous, serial communications with
peripheral devices.
Features of the SPI module include the following:
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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
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
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C (inter-integrated circuit) compatibility
Serial Peripheral Interface (SPI)
MC68HC08AZ60A — Rev 0.0
MOTOROLA
2)