AT32UC3A4256 Atmel Corporation, AT32UC3A4256 Datasheet - Page 54
AT32UC3A4256
Manufacturer Part Number
AT32UC3A4256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.AT32UC3A3128.pdf
(91 pages)
5.AT32UC3A3128.pdf
(1012 pages)
Specifications of AT32UC3A4256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
2
Uart
4
Ssc
1
Sd / Emmc
2
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
128
Self Program Memory
YES
Dram Memory
No
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0 to 3.6
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT32UC3A4256S-C1UR
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT32UC3A4256S-U
Manufacturer:
ST
Quantity:
79
Part Number:
AT32UC3A4256S-U
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
32002F–03/2010
FCP.S – Floating Point Compare
Description
Performs a compare between the two floating point operands specified. The operation is imple-
mented by doing a floating-point subtraction without writeback of the difference. The operation
sets the status flags according to the result of the subtraction, but does not affect the operand
registers. See
mnemonics corresponding to different compare results.
Operation:
I.
Syntax:
I.
Operands:
I.
Status Flags:
Opcode:
31
1
15
0
0
Rx - Ry;
fcmp.s Rx, Ry
{x, y} ∈ {0, 1, …, 15}
Q:
1
Compare result
Less
Greater
Equal
Unordered
0
29
Table 4-2, “Floating point branch conditions,” on page 41
1
Not affected
28
0
0
0
0
0
1
Status register flags
C
N
V
Z
C
N
V
Z
C
N
V
Z
C
N
V
Z
0
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
←
25
0
0
0
1
0
1
1
0
0
0
0
0
0
0
0
0
1
24
1
0
1
0
Rx
1
20
0
19
1
for branch condition
1
Ry
AVR32
0
0
16
0
54