SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 736

• 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

33.8.12
Name:
Addresses:
Access:
Reset Value:
This register can only be written if the WPEN bit is cleared in
• FI_DI_RATIO: FI Over DI Ratio Value
0: If ISO7816 mode is selected, the Baud Rate Generator generates no signal.
1 - 2047: If ISO7816 mode is selected, the Baud Rate is the clock provided on SCK divided by FI_DI_RATIO.
736
736
31
23
15
–
–
–
7
SAM3S
SAM3S
USART FI DI RATIO Register
30
22
14
US_FIDI
0x40024040 (0), 0x40028040 (1)
Read-write
0x174
–
–
–
6
29
21
13
–
–
–
5
28
20
12
–
–
–
4
FI_DI_RATIO
“USART Write Protect Mode Register” on page
27
19
11
–
–
–
3
26
18
10
–
–
2
FI_DI_RATIO
25
17
–
–
9
1
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
741.
24
16
–
–
8
0