SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 124

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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
11.6.5.14
124
124
SAM4S
SAM4S
SASX and SSAX
Signed Add and Subtract with Exchange and Signed Subtract and Add with Exchange.
Syntax
op{cond} {Rd}, Rm, Rn
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
SASX
SSAX
1. Adds the signed top halfword of the first operand with the signed bottom halfword of the
2. Writes the signed result of the addition to the top halfword of the destination register.
3. Subtracts the signed bottom halfword of the second operand from the top signed high-
4. Writes the signed result of the subtraction to the bottom halfword of the destination
1. Subtracts the signed bottom halfword of the second operand from the top signed high-
2. Writes the signed result of the addition to the bottom halfword of the destination
3. Adds the signed top halfword of the first operand with the signed bottom halfword of the
4. Writes the signed result of the subtraction to the top halfword of the destination register.
SASX
SSAX
second operand.
word of the first operand.
register.
word of the first operand.
register.
second operand.
R0, R4, R5
R7, R3, R2
instruction:
instruction:
is any of:
SASX
SSAX
is an optional condition code, see
is the destination register.
are registers holding the first and second operands.
Signed Add and Subtract with Exchange.
Signed Subtract and Add with Exchange.
; Adds top halfword of R4 to bottom halfword of R5 and
; Subtracts top halfword of R2 from bottom halfword of R3
; writes to top halfword of R0
; Subtracts bottom halfword of R5 from top halfword of R4
; and writes to bottom halfword of R0
; and writes to bottom halfword of R7
; Adds top halfword of R3 with bottom halfword of R2 and
; writes to top halfword of R7.
.
“Conditional Execution”
.
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11

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