at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 206
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at91rm3400
Manufacturer Part Number
at91rm3400
Description
Atmel Advanced At91 Arm Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91RM3400.pdf
(461 pages)
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Functional
Description
Figure 67. I/O Line Control Logic
206
Output Enable
Output Enable
Peripheral A
Peripheral B
Peripheral A
Peripheral B
PIO_ASR
PIO_BSR
Output
Output
AT91RM3400
PIO_ABSR
PIO_OER
PIO_ODR
1
1
0
0
The PIO Controller features up to 32 fully-programmable I/O lines. Most of the control logic
associated to each I/O is represented in Figure 67.
PIO_OSR
PIO_IFDR
PIO_IFER
PIO_SODR
PIO_CODR
PIO_IFSR
PIO_PDR
Glitch
PIO_PER
Filter
PIO_ODSR
PIO_PSR
1
0
PIO_PDSR
PIO_IER
PIO_IDR
1
0
1
0
Detector
Edge
PIO_IMR
PIO_ISR
PIO_MDER
PIO_MDDR
PIO_MDSR
1
0
1
1
0
0
PIO_PUER
PIO_PUDR
PIO Interrupt
PIO_PUSR
Peripheral B
Peripheral A
Input
Input
1790A–ATARM–11/03
Pad
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