ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 506

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.5
Figure 30-3. I/O Line Control Logic
506
506
PIO_SCDR
Functional Description
SAM3U Series
SAM3U Series
Slow Clock
System Clock
Output Enable
Output Enable
Peripheral A
Peripheral B
Peripheral A
Peripheral B
Output
Output
PIO_SCIFSR[0]
PIO_DCIFSR[0]
PIO_IFSCR[0]
Divider
Clock
The PIO Controller features up to 32 fully-programmable I/O lines. Most of the control logic asso-
ciated to each I/O is represented in
represents but one of up to 32 possible indexes.
PIO_ABSR[0]
1
0
PIO_IFER[0]
PIO_IFDR[0]
Programmable
PIO_OER[0]
PIO_ODR[0]
Debouncing
PIO_IFSR[0]
1
1
Glitch
0
0
Filter
or
PIO_OSR[0]
PIO_SODR[0]
PIO_CODR[0]
PIO_PER[0]
PIO_PDR[0]
1
0
PIO_ODSR[0]
PIO_PSR[0]
Resynchronization
D
DFF
Q
Stage
D
PIO_PDSR[0]
DFF
Q
Figure
1
0
1
0
PIO_MDER[0]
PIO_MDDR[0]
30-3. In this description each signal shown
DETECTOR
PIO_IDR[31]
PIO_IER[31]
EVENT
PIO_MDSR[0]
PIO_IDR[0]
PIO_IER[0]
PIO_IMR[31]
PIO_ISR[31]
PIO_IMR[0]
1
0
0
1
PIO_PUER[0]
PIO_PUDR[0]
PIO_ISR[0]
PIO_PUSR[0]
(Up to 32 possible inputs)
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
Peripheral A
Peripheral B
PIO Interrupt
Input
Input
Pad