SAM3S4B Atmel Corporation, SAM3S4B Datasheet - Page 720

• 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

33.8.2
Name:
Addresses:
Access:
This register can only be written if the WPEN bit is cleared in
• USART_MODE
• USCLKS: Clock Selection
• CHRL: Character Length.
720
720
INVDATA
ONEBIT
Value
Value
Value
31
23
15
7
0xE
0xF
0x0
0x1
0x2
0x3
0x4
0x6
0x8
0
1
3
0
SAM3S
SAM3S
USART Mode Register
CHMODE
CHRL
VAR_SYNC
MODSYNC
HW_HANDSHAKING
30
22
14
US_MR
0x40024004 (0), 0x40028004 (1)
Read-write
6
Name
5_BIT
SPI_MASTER
IS07816_T_0
IS07816_T_1
SPI_SLAVE
NORMAL
MODEM
RS485
Name
Name
MCK
IRDA
SCK
DIV
DSNACK
MAN
Description
Character length is 5 bits
29
21
13
5
NBSTOP
USCLKS
Description
Normal mode
RS485
Hardware Handshaking
Modem
IS07816 Protocol: T = 0
IS07816 Protocol: T = 1
IrDA
SPI Master
SPI Slave
Description
Master Clock MCK is selected
Internal Clock Divided MCK/DIV (DIV=8) is selected
Serial Clock SLK is selected
FILTER
INACK
28
20
12
4
“USART Write Protect Mode Register” on page
OVER
27
19
11
–
3
CLKO
PAR
26
18
10
2
USART_MODE
MAX_ITERATION
MODE9
25
17
9
1
6500C–ATARM–8-Feb-11
6500C–ATARM–8-Feb-11
MSBF/CPOL
SYNC/CPHA
741.
24
16
8
0