AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 225
AT91SAM7S32-AI
Manufacturer Part Number
AT91SAM7S32-AI
Description
AT91 ARM Thumb-based Microcontrollers
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT91SAM7S32-AI.pdf
(446 pages)
- Current page: 225 of 446
- Download datasheet (3Mb)
Signal Description
Table 53. Signal Description
Product Dependencies
I/O Lines
Power
Management
Interrupt
6071A–ATARM–28-Oct-04
Pin Name
MISO
MOSI
SPCK
NPCS1-NPCS3
NPCS0/NSS
Pin Description
Master In Slave Out
Master Out Slave In
Serial Clock
Peripheral Chip Selects
Peripheral Chip Select/Slave Select
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.
The SPI may be clocked through the Power Management Controller (PMC), thus the program-
mer must first configure the PMC to enable the SPI clock.
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.
AT91SAM7S32 Preliminary
Master
Input
Output
Output
Output
Output
Type
Input
Slave
Output
Input
Unused
Input
225
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