SAM4S16C Atmel Corporation, SAM4S16C Datasheet - Page 159

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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
11.6.7.4
11100A–ATARM–28-Oct-11
11100A–ATARM–28-Oct-11
QASX and QSAX
Saturating Add and Subtract with Exchange and Saturating Subtract and Add with Exchange,
signed.
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
QASX
1. Adds the top halfword of the source operand with the bottom halfword of the second
2. Subtracts the top halfword of the second operand from the bottom highword of the first
3. Saturates the result of the subtraction and writes a 16-bit signed integer in the range –
4. Saturates the results of the sum and writes a 16-bit signed integer in the range
1. Subtracts the bottom halfword of the second operand from the top highword of the first
2. Adds the bottom halfword of the source operand with the top halfword of the second
3. Saturates the results of the sum and writes a 16-bit signed integer in the range
4. Saturates the result of the subtraction and writes a 16-bit signed integer in the range –
QASX
QSAX
operand.
operand.
2
–2
operand.
operand.
–2
2
15
15
15
15
R7, R4, R2
instruction:
instruction:
x
x
x
x
2
2
15
2
2
15
are registers holding the first and second operands.
is one of:
QASX
QSAX
is an optional condition code, see
is the destination register.
15
15
– 1, where
– 1, where
– 1, where
– 1, where
Add and Subtract with Exchange and Saturate.
Subtract and Add with Exchange and Saturate.
; Adds top halfword of R4 to bottom halfword of R2,
; saturates to 16 bits, writes to top halfword of R7
; R4, saturates to 16 bits and writes to bottom halfword
; of R7
; Subtracts top highword of R2 from bottom halfword of
x
x
x
x
equals 16, to the bottom halfword of the destination register.
equals 16, to the top halfword of the destination register.
equals 16, to the top halfword of the destination register.
equals 16, to the bottom halfword of the destination register.
.
“Conditional Execution”
.
SAM4S
SAM4S
159
159

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