ATUC64D3 Atmel Corporation, ATUC64D3 Datasheet - Page 49
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ATUC64D3
Manufacturer Part Number
ATUC64D3
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(33 pages)
3.AT32UC3A0128.pdf
(159 pages)
4.ATUC128D3.pdf
(755 pages)
5.ATUC128D3.pdf
(69 pages)
Specifications of ATUC64D3
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
48 MHz
Cpu
32-bit AVR
# Of Touch Channels
25
Hardware Qtouch Acquisition
Yes
Max I/o Pins
51
Ext Interrupts
51
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
3
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)
16
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
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
7
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
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- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3A0128 PDF datasheet #3
- ATUC128D3 PDF datasheet #4
- ATUC128D3 PDF datasheet #5
- Current page: 49 of 377
- Download datasheet (5Mb)
5.3.3.4
32000D–04/2011
DTLB Modified
This exception is issued if a valid memory write operation is performed to a page that has never
been written before. This is detected by the Dirty-bit in the matching TLB entry reading zero.
1. Examine the TLBEAR and TLBEHI registers in order to identify the page that caused
2. Set the Dirty bit in the read page table entry and write this entry back to the page table
3. Use the fetched page table entry to update the necessary bits in PTEHI and PTELO.
4. The TLBEHI[I] register is updated by hardware to indicate that it was a DTLB miss.
5. Execute the tlbw instruction in order to update the TLB entry.
6. Finish the exception handling and return to the application by executing the rete
the fault. Use this to index the page table pointed to by PTBR and fetch the desired
page table entry.
The following bits must be updated: V, PFN, C, G, B, AP[2:0], SZ[1:0], W, D.
Ensure that MMUCR[DRP] points to the TLB entry to replace. An entry for the faulting
page must already exist in the DTLB, and MMUCR[DRP] must point to this entry, other-
wise multiple DTLB hits may occur.
instruction.
AVR32
49
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