AT32UC3C164C Atmel Corporation, AT32UC3C164C Datasheet - Page 258
AT32UC3C164C
Manufacturer Part Number
AT32UC3C164C
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.AT32UC3C0128C.pdf
(1313 pages)
4.AT32UC3C0128C.pdf
(108 pages)
Specifications of AT32UC3C164C
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
81
Ext Interrupts
100
Usb Transceiver
1
Quadrature Decoder Channels
2
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
7
Twi (i2c)
3
Uart
5
Can
2
Lin
5
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
16
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
4
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
20
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 to 3.6 or 4.5 to 5.5
Operating Voltage (vcc)
3.0 to 3.6 or 4.5 to 5.5
Fpu
Yes
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
22
Input Capture Channels
12
Pwm Channels
19
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3C164C-AUR
Manufacturer:
ATMEL
Quantity:
1 240
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3C0128C PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
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- Download datasheet (20Mb)
15.4.9
32117C–AVR-08/11
Writing Words to a Page that is not Completely Erased
Figure 15-3. Mapping from Page Buffer to Flash
The page buffer is word-addressable and should only be written with aligned word transfers,
never with byte or halfword transfers. The page buffer can not be read.
The page buffer is also used for writes to the User page.
Page buffer write operations are performed with 4 wait states. Any accesses attempted to the
FLASHC on the HSB bus during these cycles will be automatically stalled.
Writing to the page buffer can only change page buffer bits from one to zero, i.e. writing
0xAAAAAAAA to a page buffer location that has the value 0x00000000 will not change the page
buffer value. The only way to change a bit from zero to one is to erase the entire page buffer with
the Clear Page Buffer command.
The page buffer is not automatically reset after a page write. The programmer should do this
manually by issuing the Clear Page Buffer flash command. This can be done after a page write,
or before the page buffer is loaded with data to be stored to the flash page.
This can be used for EEPROM emulation, i.e. writes with granularity of one word instead of an
entire page. Only words that are in an completely erased state (0xFFFFFFFF) can be changed.
The procedure is as follows:
6 3
5 9
5 5
5 1
4 7
4 3
3 9
3 5
3 1
2 7
2 3
1 9
1 5
1 1
7
3
A ll lo c a tio n s a re w o rd lo c a tio n s
P a g e B u ffe r
6 2
5 8
5 4
5 0
4 6
4 2
3 8
3 4
3 0
2 6
2 2
1 8
1 4
1 0
3 2 -b it d a ta
6
2
6 1
5 7
5 3
4 9
4 5
4 1
3 7
3 3
2 9
2 5
2 1
1 7
1 3
9
5
1
6 0
5 6
5 2
4 8
4 4
4 0
3 6
3 2
2 8
2 4
2 0
1 6
1 2
8
4
0
Y 6 3
Y 5 9
Y 5 5
Y 5 1
Y 4 7
Y 4 3
Y 3 9
Y 3 5
Y 3 1
Y 2 7
Y 2 3
Y 1 9
Y 1 5
Y 1 1
X 6 3
X 5 9
X 5 5
X 5 1
X 4 7
X 4 3
X 3 9
X 3 5
X 3 1
X 2 7
X 2 3
X 1 9
X 1 5
X 1 1
Y 7
Y 3
X 7
X 3
Y 6 2
Y 5 8
Y 5 4
Y 5 0
Y 4 6
Y 4 2
Y 3 8
Y 3 4
Y 3 0
Y 2 6
Y 2 2
Y 1 8
Y 1 4
Y 1 0
X 6 2
X 5 8
X 5 4
X 5 0
X 4 6
X 4 2
X 3 8
X 3 4
X 3 0
X 2 6
X 2 2
X 1 8
X 1 4
X 1 0
Y 6
Y 2
X 6
X 2
P a g e Y
P a g e X
F la s h
Y 6 1
Y 5 7
Y 5 3
Y 4 9
Y 4 5
Y 4 1
Y 3 7
Y 3 3
Y 2 9
Y 2 5
Y 2 1
Y 1 7
Y 1 3
X 6 1
X 5 7
X 5 3
X 4 9
X 4 5
X 4 1
X 3 7
X 3 3
X 2 9
X 2 5
X 2 1
X 1 7
X 1 3
Y 9
Y 5
Y 1
X 9
X 5
X 1
AT32UC3C
Y 6 0
Y 5 6
Y 5 2
Y 4 8
Y 4 4
Y 4 0
Y 3 6
Y 3 2
Y 2 8
Y 2 4
Y 2 0
Y 1 6
Y 1 2
X 6 0
X 5 6
X 5 2
X 4 8
X 4 4
X 4 0
X 3 6
X 3 2
X 2 8
X 2 4
X 2 0
X 1 6
X 1 2
Y 8
Y 4
Y 0
X 8
X 4
X 0
258
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