SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 46
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SAM4S16C
Manufacturer Part Number
SAM4S16C
Description
Manufacturer
Atmel Corporation
Specifications of SAM4S16C
Flash (kbytes)
1024 Kbytes
Pin Count
100
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
79
Ext Interrupts
79
Usb Transceiver
1
Quadrature Decoder Channels
2
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
16
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)
128
Self Program Memory
YES
External Bus Interface
1
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
6
Output Compare Channels
6
Input Capture Channels
6
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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Table 11-2.
Notes:
11.4.1.4
11.4.1.5
11.4.1.6
11.4.1.7
46
46
Register
Link Register
Program Counter
Program Status Register
Application Program Status Register
Interrupt Program Status Register
Execution Program Status Register
Priority Mask Register
Fault Mask Register
Base Priority Mask Register
CONTROL register
1. Describes access type during program execution in thread mode and Handler mode. Debug access can differ.
2. An entry of Either means privileged and unprivileged software can access the register.
SAM4S
SAM4S
General-purpose Registers
Stack Pointer
Link Register
Program Counter
Core Processor Registers
R0-R12 are 32-bit general-purpose registers for data operations.
The Stack Pointer (SP) is register R13. In Thread mode, bit[1] of the CONTROL register indi-
cates the stack pointer to use:
On reset, the processor loads the MSP with the value from address 0x00000000.
The Link Register (LR) is register R14. It stores the return information for subroutines, function
calls, and exceptions. On reset, the processor loads the LR value 0xFFFFFFFF
The Program Counter (PC) is register R15. It contains the current program address. On reset,
the processor loads the PC with the value of the reset vector, which is at address 0x00000004.
Bit[0] of the value is loaded into the EPSR T-bit at reset and must be 1.
• 0 = Main Stack Pointer (MSP). This is the reset value.
• 1 = Process Stack Pointer (PSP).
Name
LR
PC
PSR
APSR
IPSR
EPSR
PRIMASK
FAULTMASK
BASEPRI
CONTROL
Access
Read-write
Read-write
Read-write
Read-write
Read-only
Read-only
Read-write
Read-write
Read-write
Read-write
(1)
Required
Privilege
Either
Either
Privileged
Either
Privileged
Privileged
Privileged
Privileged
Privileged
Privileged
(2)
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
.
Reset
0xFFFFFFFF
See description
0x01000000
0x00000000
0x00000000
0x01000000
0x00000000
0x00000000
0x00000000
0x00000000
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