AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 462

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

Figure 30-7. Programmable I/O Delays
30.5
462
I/O Lines Programming Example
AT91SAM9G45
The programing example as shown in
configuration.
Table 30-1.
• 4-bit output port on I/O lines 0 to 3, (should be written in a single write operation), open-drain,
• Four output signals on I/O lines 4 to 7 (to drive LEDs for example), driven high and low, no
• Four input signals on I/O lines 8 to 11 (to read push-button states for example), with pull-up
• Four input signals on I/O line 12 to 15 to read an external device status (polled, thus no input
• I/O lines 16 to 19 assigned to peripheral A functions with pull-up resistor
• I/O lines 20 to 23 assigned to peripheral B functions, no pull-up resistor
• I/O line 24 to 27 assigned to peripheral A with Input Change Interrupt and pull-up resistor
PIO
with pull-up resistor
pull-up resistor
resistors, glitch filters and input change interrupts
change interrupt), no pull-up resistor, no glitch filter
DELAY1
DELAYx
DELAY2
PAout[1]
PAout[2]
PAout[0]
PAin[1]
PAin[2]
PAin[0]
PIO_SODR
PIO_CODR
PIO_IFDR
PIO_ODR
PIO_IFER
PIO_PER
PIO_PDR
PIO_OER
Register
Programming Example
Programmable Delay Line
Programmable Delay Line
Programmable Delay Line
Table 30-1
Value to be Written
0x0FFF F0FF
0x0FFF FFFF
0x0000 FFFF
0x0FFF FF00
0x0FFF 0000
0x0000 00FF
0x0000 0F00
0x0000 0000
below is used to define the following
6438F–ATARM–21-Jun-10