ATSAM3S4AA-MU Atmel, ATSAM3S4AA-MU Datasheet - Page 498

• Manufacturer Part Number: ATSAM3S4AA-MU
• Description: IC MCU 32BIT 256KB FLASH 48QFN
• Manufacturer: Atmel
• Series: SAM3Sr

Specifications of ATSAM3S4AA-MU

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 1.95 V
• Data Converters: A/D 8x10/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• Processor Series: ATSAM3x
• Core: ARM Cortex M3
• 3rd Party Development Tools: JTRACE-CM3, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: ATSAM3S-EK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

28.6
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498
I/O Lines Programming Example
SAM3S Preliminary
SAM3S Preliminary
The programing example as shown in
configuration.
Table 28-2.
• 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 with pull-down resistor
• I/O line 24 to 27 assigned to peripheral C with Input Change Interrupt, no pull-up resistor and
• I/O line 28 to 31 assigned to peripheral D, no pull-up resistor and no pull-down resistor
with pull-up resistor
pull-up resistor, no pull-down resistor
resistors, glitch filters and input change interrupts
change interrupt), no pull-up resistor, no glitch filter
no pull-down resistor
PIO_ABCDSR1
PIO_ABCDSR2
PIO_PPDDR
PIO_PPDER
PIO_OWDR
PIO_MDDR
PIO_OWER
PIO_SODR
PIO_CODR
PIO_MDER
PIO_PUDR
PIO_PUER
PIO_IFDR
PIO_OER
PIO_ODR
PIO_IFER
PIO_PER
PIO_PDR
Register
PIO_IER
PIO_IDR
Programming Example
Table 28-2
Value to be Written
below is used to obtain the following
0x0FFF_ FFF0
0xFFFF_F0FF
0x0FFF_FFFF
0xFFFF_FFF0
0xFF0F_FFFF
0xFFFF_FF00
0xF0FF_F0FF
0x0000_FFFF
0xFFFF_0000
0x0000_00FF
0x0F00_0F00
0xFFF0_00F0
0x000F_FF0F
0xF0F0_0000
0xFF00_0000
0x0000_0F00
0x0000_0000
0x0000_000F
0x00F0_0000
0x0000_000F
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11