SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 135
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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11.6.5.24
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
USUB16 and USUB8
Unsigned Subtract 16 and Unsigned Subtract 8
Syntax
op{cond}{Rd,} Rn, Rm
where:
op
cond
Rd
Rn
Rm
Operation
Use these instructions to subtract 16-bit and 8-bit data before writing the result to the destination
register:
The
The
Restrictions
Do not use SP and do not use PC
Condition Flags
These instructions do not change the flags.
Examples
USUB16 R1, R0
1. Subtracts each halfword from the second operand register from the corresponding half-
2. Writes the unsigned result in the corresponding halfwords of the destination register.
1. Subtracts each byte of the second operand register from the corresponding byte of the
2. Writes the unsigned byte result in the corresponding byte of the destination register.
USUB16
USUB8
word of the first operand register.
first operand register.
instruction:
instruction:
is any of:
USUB16
USUB8
is an optional condition code, see
is the destination register.
is the first operand register.
is the second operand register.
; and writes to corresponding halfword in R1USUB8 R4, R0, R5
; Subtracts bytes of R5 from corresponding byte in R0 and
; writes to the corresponding byte in R4.
; Subtracts halfwords in R0 from corresponding halfword of R1
Unsigned Subtract 8.
Unsigned Subtract 16.
.
“Conditional Execution”
.
SAM4S
SAM4S
135
135
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