AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 247

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

Table 27-1.
• 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
pull-up resistor
resistors, glitch filters and input change interrupts
change interrupt), no pull-up resistor, no glitch filter
PIO_OWER
PIO_OWDR
PIO_CODR
PIO_MDER
PIO_MDDR
PIO_SODR
PIO_PUDR
PIO_PUER
PIO_ODR
PIO_IFER
PIO_IFDR
PIO_PDR
PIO_OER
PIO_PER
PIO_ASR
PIO_BSR
Register
PIO_IER
PIO_IDR
Programming Example
Value to be Written
SAM7S Series [DATASHEET]
0x0FFF F0FF
0x0FFF FFFF
0x0FFF FFF0
0x0FFF FFF0
0x0000 FFFF
0x0FFF 0000
0x0FFF FF00
0x00FF F0FF
0x0F0F FF0F
0x0000 00FF
0x0000 0F00
0x0F00 0F00
0x0000 000F
0x00F0 00F0
0x0F0F 0000
0x00F0 0000
0x0000 000F
0x0000 0000
6175M–ATARM–26-Oct-12
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