SAM3S1A Atmel Corporation, SAM3S1A Datasheet - Page 191

no-image

SAM3S1A

Manufacturer Part Number
SAM3S1A
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of SAM3S1A

Flash (kbytes)
64 Kbytes
Pin Count
48
Max. Operating Frequency
64 MHz
Cpu
Cortex-M3
# Of Touch Channels
17
Hardware Qtouch Acquisition
No
Max I/o Pins
34
Ext Interrupts
34
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
2
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
1000
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
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
10.22 System timer, SysTick
Table 10-33. System timer registers summary
1.
6500C–ATARM–8-Feb-11
Address
0xE000E010
0xE000E014
0xE000E018
0xE000E01C
SysTick calibration value.
Name
CTRL
LOAD
VAL
CALIB
The processor has a 24-bit system timer, SysTick, that counts down from the reload value to
zero, reloads (wraps to) the value in the LOAD register on the next clock edge, then counts
down on subsequent clocks.
When the processor is halted for debugging the counter does not decrement.
The system timer registers are:
Type
RW
RW
RW
RO
Required
privilege
Privileged
Privileged
Privileged
Privileged
Reset
value
0x00000004
0x00000000
0x00000000
0x0002904
(1)
Description
“SysTick Control and Status Register” on page 192
“SysTick Reload Value Register” on page 193
“SysTick Current Value Register” on page 194
“SysTick Calibration Value Register” on page 195
SAM3S
191

Related parts for SAM3S1A