SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 134

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SAM4S16C

Manufacturer Part Number
SAM4S16C
Description
Manufacturer
Atmel Corporation
Datasheets

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
11.6.5.23
134
134
SAM4S
SAM4S
USADA8
Unsigned Sum of Absolute Differences and Accumulate
Syntax
USADA8{cond}{Rd,} Rn, Rm, Ra
where:
cond
Rd
Rn
Rm
Ra
Operation
The
Restrictions
Do not use SP and do not use PC
Condition Flags
These instructions do not change the flags.
Examples
USADA8 R1, R0, R6
USADA8 R4, R0, R5, R2 ; Subtracts bytes of R5 from corresponding byte in R0
1. Subtracts each byte of the second operand register from the corresponding byte of the
2. Adds the unsigned absolute differences together.
3. Adds the accumulation value to the sum of the absolute differences.
4. Writes the result to the destination register.
USADA8
first operand register.
instruction:
is an optional condition code, see
is the destination register.
is the first operand register.
is the second operand register.
is the register that contains the accumulation value.
; adds differences, adds value of R6, writes to R1
; adds differences, adds value of R2 writes to R4.
; Subtracts bytes in R0 from corresponding halfword of R1
.
“Conditional Execution”
.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11

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