SAM3S16C Atmel Corporation, SAM3S16C Datasheet - Page 178
SAM3S16C
Manufacturer Part Number
SAM3S16C
Description
Manufacturer
Atmel Corporation
Datasheet
1.SAM3S16C.pdf
(1130 pages)
Specifications of SAM3S16C
Flash (kbytes)
1024 Kbytes
Pin Count
100
Max. Operating Frequency
100 MHz
Cpu
Cortex-M3
# Of Touch Channels
39
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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12.20.8
• STKALIGN
Indicates stack alignment on exception entry:
0 = 4-byte aligned
1 = 8-byte aligned.
On exception entry, the processor uses bit[9] of the stacked PSR to indicate the stack alignment. On return from the excep-
tion it uses this stacked bit to restore the correct stack alignment.
• BFHFNMIGN
Enables handlers with priority -1 or -2 to ignore data bus faults caused by load and store instructions. This applies to the
hard fault and FAULTMASK escalated handlers:
0 = data bus faults caused by load and store instructions cause a lock-up
1 = handlers running at priority -1 and -2 ignore data bus faults caused by load and store instructions.
Set this bit to 1 only when the handler and its data are in absolutely safe memory. The normal use of this bit is to probe sys-
tem devices and bridges to detect control path problems and fix them.
• DIV_0_TRP
Enables faulting or halting when the processor executes an SDIV or UDIV instruction with a divisor of 0:
0 = do not trap divide by 0
1 = trap divide by 0.
When this bit is set to 0,a divide by zero returns a quotient of 0.
• UNALIGN_TRP
Enables unaligned access traps:
0 = do not trap unaligned halfword and word accesses
136
31
23
15
7
SAM3S16
Configuration and Control Register
Reserved
30
22
14
6
The CCR controls entry to Thread mode and enables:
See the register summary in
The bit assignments are:
• the handlers for hard fault and faults escalated by FAULTMASK to ignore bus faults
• trapping of divide by zero and unaligned accesses
• access to the STIR by unprivileged software, see
page
123.
29
21
13
5
Reserved
DIV_0_TRP
28
20
12
4
Table 12-30 on page 126
Reserved
Reserved
UNALIGN_T
RP
27
19
11
3
“Software Trigger Interrupt Register” on
Reserved
for the CCR attributes.
26
18
10
2
USERSETM
STKALIGN
PEND
25
17
9
1
11117B–ATARM–18-Oct-11
BFHFNMIGN
NONBASET
HRDENA
24
16
8
0
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