SAM7X256_14 Datasheet, PDF (246/662 Pages) ATMEL Corporation – ARM-based Flash MCU

28.5 Product Dependencies
28.5.1 I/O Lines
The pins used for interfacing the compliant external devices may be multiplexed with PIO lines. The programmer must
first program the PIO controllers to assign the SPI pins to their peripheral functions.
28.5.2 Power Management
The SPI may be clocked through the Power Management Controller (PMC), thus the programmer must first configure the
PMC to enable the SPI clock.
28.5.3 Interrupt
The SPI interface has an interrupt line connected to the Advanced Interrupt Controller (AIC). Handling the SPI interrupt
requires programming the AIC before configuring the SPI.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
246