SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 127

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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
11.6.5.17
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
UASX and USAX
Add and Subtract with Exchange and Subtract and Add with Exchange.
Syntax
op{cond} {Rd}, Rn, Rm
where:
op
cond
Rd
Rn, Rm
Operation
The
The
Restrictions
Do not use SP and do not use PC
Condition Flags
These instructions do not affect the condition code flags.
Examples
UASX
USAX
1. Subtracts the top halfword of the second operand from the bottom halfword of the first
2. Writes the unsigned result from the subtraction to the bottom halfword of the destina-
3. Adds the top halfword of the first operand with the bottom halfword of the second
4. Writes the unsigned result of the addition to the top halfword of the destination register.
1. Adds the bottom halfword of the first operand with the top halfword of the second
2. Writes the unsigned result of the addition to the bottom halfword of the destination
3. Subtracts the bottom halfword of the second operand from the top halfword of the first
4. Writes the unsigned result from the subtraction to the top halfword of the destination
UASX
USAX
operand.
tion register.
operand.
operand.
register.
operand.
register.
R0, R4, R5
R7, R3, R2
instruction:
instruction:
are registers holding the first and second operands.
is one of:
UASX
USAX
is an optional condition code, see
is the destination register.
Add and Subtract with Exchange.
Subtract and Add with Exchange.
; and writes to bottom halfword of R7
; writes to top halfword of R0
; Subtracts bottom halfword of R5 from top halfword of R0
; and writes to bottom halfword of R0
; Adds top halfword of R4 to bottom halfword of R5 and
; Subtracts top halfword of R2 from bottom halfword of R3
.
“Conditional Execution”
.
SAM4S
SAM4S
127
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