MMC2107 - Freescale Semiconductor

Serial Peripheral Interface Module (SPI)
Freescale Semiconductor, Inc.
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Freescale Semiconductor, I
17.2 Introduction
17.3 Features
17.8.7 Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395
17.8.7.1 Write Collision Error . . . . . . . . . . . . . . . . . . . . . . . . . . . .395
17.8.7.2 Mode Fault Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395
17.8.8 Low-Power Mode Options . . . . . . . . . . . . . . . . . . . . . . . . .396
17.8.8.1 Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396
17.8.8.2 Doze Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396
17.8.8.3 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396
17.9 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .397
17.10 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .397
17.10.1 SPI Interrupt Flag (SPIF) . . . . . . . . . . . . . . . . . . . . . . . . . .397
17.10.2 Mode Fault (MODF) Flag . . . . . . . . . . . . . . . . . . . . . . . . . .397
The serial peripheral interface (SPI) module allows full-duplex,
synchronous, serial communication between the microcontroller unit
(MCU) and peripheral devices. Software can poll the SPI status flags or
SPI operation can be interrupt driven.
Features include:
• Master mode and slave mode
• Wired-OR mode
• Slave-select output
• Mode fault error flag with central processor unit (CPU) interrupt
capability
• Double-buffered operation
• Serial clock with programmable polarity and phase
• Control of SPI operation during doze mode
• Reduced drive control for lower power consumption
Technical Data MMC2107 – Rev. 2.0
372 Serial Peripheral Interface Module (SPI) MOTOROLA
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