AT91M55800A Datasheet, PDF (107/227 Pages) ATMEL Corporation – ARM Thumb Microcontrollers

Figure 40. Parallel I/O Multiplexed with a Bi-directional Signal
AT91M55800A
PIO_OSR
1
Pad Output Enable
0
0
1
PIO_PSR
Pad Output
PIO_MDSR
PIO_ODSR
1
0
Pad
Pad Input
Filter
1
0
0
OFF
1
Value⁽¹⁾
PIO_IFSR
PIO_PSR
PIO_PDSR
Event
Detection
PIO_ISR
PIO_IMR
Note: 1. See “PIO Connection Tables.”
Peripheral
Output
Enable
Peripheral
Output
Peripheral
Input
PIOIRQ
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