SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 519

• Manufacturer Part Number: SAM3S4B
• Manufacturer: Atmel Corporation

Specifications of SAM3S4B

• Flash (kbytes): 256 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 64 MHz
• Cpu: Cortex-M3
• # Of Touch Channels: 23
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 79
• Ext Interrupts: 79
• Usb Transceiver: 1
• Quadrature Decoder Channels: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 2
• Uart: 4
• Ssc: 1
• Sd / Emmc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 10
• Adc Resolution (bits): 12
• Adc Speed (ksps): 1000
• Analog Comparators: 1
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 12
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 48
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

28.7.32
Name:
Addresses:
Access:
This register can only be written if the WPEN bit is cleared in
• P0-P31: Pull Down Status.
0 = Pull Down resistor is enabled on the I/O line.
1 = Pull Down resistor is disabled on the I/O line.
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
P31
P23
P15
P7
31
23
15
7
PIO Pad Pull Down Status Register
P30
P22
P14
P6
30
22
14
PIO_PPDSR
0x400E0E98 (PIOA), 0x400E1098 (PIOB), 0x400E1298 (PIOC)
Read-only
6
P29
P21
P13
P5
29
21
13
5
P28
P20
P12
P4
28
20
12
4
“PIO Write Protect Mode Register”
P27
P19
P11
P3
27
19
11
3
P26
P18
P10
P2
26
18
10
2
.
P25
P17
P9
P1
25
17
9
1
SAM3S
SAM3S
P24
P16
P8
P0
24
16
8
0
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