SAM3U4E Atmel Corporation, SAM3U4E Datasheet - Page 140
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SAM3U4E
Manufacturer Part Number
SAM3U4E
Description
Manufacturer
Atmel Corporation
Specifications of SAM3U4E
Flash (kbytes)
256 Kbytes
Pin Count
144
Max. Operating Frequency
96 MHz
Cpu
Cortex-M3
# Of Touch Channels
57
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
5
Twi (i2c)
2
Uart
5
Ssc
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
50
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
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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13.15.1
13.15.1.1
13.15.1.2
13.15.1.3
13.15.1.4
13.15.1.5
140
BFC
BFI
SAM3U Series
BFC and BFI
Syntax
Operation
Restrictions
Condition flags
Examples
R4, #8, #12
R9, R2, #8, #12
Bit Field Clear and Bit Field Insert.
where:
cond
Rd
Rn
lsb
width
BFC clears a bitfield in a register. It clears width bits in Rd, starting at the low bit position lsb.
Other bits in Rd are unchanged.
BFI copies a bitfield into one register from another register. It replaces width bits in Rd starting at
the low bit position lsb, with width bits from Rn starting at bit[0]. Other bits in Rd are unchanged.
Do not use SP and do not use PC.
These instructions do not affect the flags.
BFC{cond} Rd, #lsb, #width
BFI{cond} Rd, Rn, #lsb, #width
; Clear bit 8 to bit 19 (12 bits) of R4 to 0
; Replace bit 8 to bit 19 (12 bits) of R9 with
; bit 0 to bit 11 from R2
is an optional condition code, see
is the destination register.
is the source register.
is the position of the least significant bit of the bitfield.
lsb must be in the range 0 to 31.
is the width of the bitfield and must be in the range 1 to 32− lsb.
“Conditional execution” on page
6430E–ATARM–29-Aug-11
98.
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