SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 94
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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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SAM4S
SAM4S
Post-indexed Addressing
The address obtained from the register Rn is used as the address for the memory access. The
offset value is added to or subtracted from the address, and written back into the register Rn.
The assembly language syntax for this mode is:
The value to load or store can be a byte, halfword, word, or two words. Bytes and halfwords can
either be signed or unsigned. See
The table below shows the ranges of offset for immediate, pre-indexed and post-indexed forms.
Table 11-18. Offset Ranges
Restrictions
For load instructions:
When Rt is PC in a word load instruction:
For store instructions:
Condition Flags
These instructions do not change the flags.
Instruction Type
Word, halfword, signed
halfword, byte, or signed byte
Two words
• Rt can be SP or PC for word loads only
• Rt must be different from Rt2 for two-word loads
• Rn must be different from Rt and Rt2 in the pre-indexed or post-indexed forms.
• bit[0] of the loaded value must be 1 for correct execution
• a branch occurs to the address created by changing bit[0] of the loaded value to 0
• if the instruction is conditional, it must be the last instruction in the IT block.
• Rt can be SP for word stores only
• Rt must not be PC
• Rn must not be PC
• Rn must be different from Rt and Rt2 in the pre-indexed or post-indexed forms.
[Rn, #offset]!
[Rn], #offset
Immediate Offset
-255 to 4095
multiple of 4 in the
range -1020 to
1020
“Address Alignment”
Pre-indexed
-255 to 255
multiple of 4 in the
range -1020 to
1020
.
Post-indexed
-255 to 255
multiple of 4 in the
range -1020 to 1020
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
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