AT32UC3A1256 Atmel Corporation, AT32UC3A1256 Datasheet - Page 400
AT32UC3A1256
Manufacturer Part Number
AT32UC3A1256
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(98 pages)
2.AT32UC3A0128.pdf
(826 pages)
3.AT32UC3A0128.pdf
(377 pages)
4.AT32UC3A0128.pdf
(33 pages)
5.AT32UC3A0128.pdf
(159 pages)
Specifications of AT32UC3A1256
Flash (kbytes)
256 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
69
Ext Interrupts
69
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
6
Twi (i2c)
1
Uart
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
16
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
3.0-3.6 or (1.65-1.95+3.0-3.6)
Operating Voltage (vcc)
3.0-3.6 or (1.65-1.95+3.0-3.6)
Fpu
No
Mpu / Mmu
Yes / No
Timers
10
Output Compare Channels
16
Input Capture Channels
6
Pwm Channels
13
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A1256-U
Manufacturer:
ATMEL
Quantity:
496
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32058K AVR32-01/12
Figure 27-34. Recommended Procedure to Switch from Slow Clock Mode to Normal Mode or from Normal Mode to Slow
27.6.9
27.6.9.1
Internal signal from PM
Slow Clock Mode
NBS0, NBS1,
Asynchronous Page Mode
A0, A1
CLK_SMC
Protocol and Timings in Page Mode
A[25:2]
Clock Mode
NWE
NCS
The SMC supports asynchronous burst reads in page mode, providing that the page mode is
enabled in the MODE register (PMEN field). The page size must be configured in the MODE
register (PS field) to 4, 8, 16 or 32 bytes.
The page defines a set of consecutive bytes into memory. A 4-byte page (resp. 8-, 16-, 32-byte
page) is always aligned to 4-byte boundaries (resp. 8-, 16-, 32-byte boundaries) of memory. The
MSB of data address defines the address of the page in memory, the LSB of address define the
address of the data in the page as detailed in
With page mode memory devices, the first access to one page (t
quent accesses to the page (t
enables the user to define different read timings for the first access within one page, and next
accesses within the page.
Table 27-5.
Notes:
Figure 27-35
SLOW CLOCK MODE WRITE
Page Size
4 bytes
8 bytes
16 bytes
32 bytes
1
1. A denotes the address bus of the memory device
2. For 16-bit devices, the bit 0 of address is ignored. For 32-bit devices, bits [1:0] are ignored.
1
shows the NRD and NCS timings in page mode access.
Page Address and Data Address within a Page
Page Address
A[25:2]
A[25:3]
A[25:4]
A[25:5]
1
sa
) as shown in
(1)
IDLE STATE
Table
Figure
Reload Configuration
27-5.
Data Address in the Page
A[1:0]
A[2:0]
A[3:0]
A[4:0]
Wait State
27-35. When in page mode, the SMC
2
pa
NORMAL MODE WRITE
) takes longer than the subse-
3
AT32UC3A
(2)
2
400
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