AT32UC3C2512C Atmel Corporation, AT32UC3C2512C Datasheet - Page 47
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
AT32UC3C2512C
Manufacturer Part Number
AT32UC3C2512C
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 AT32UC3C2512C
Flash (kbytes)
512 Kbytes
Pin Count
64
Max. Operating Frequency
66 MHz
Cpu
32-bit AVR
# Of Touch Channels
32
Hardware Qtouch Acquisition
No
Max I/o Pins
45
Ext Interrupts
64
Usb Transceiver
1
Quadrature Decoder Channels
1
Usb Speed
Full Speed
Usb Interface
Device + OTG
Spi
5
Twi (i2c)
2
Uart
4
Can
2
Lin
4
Ssc
1
Ethernet
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
12
Adc Speed (ksps)
2000
Analog Comparators
2
Resistive Touch Screen
No
Dac Channels
2
Dac Resolution (bits)
12
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
68
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
3
Output Compare Channels
13
Input Capture Channels
6
Pwm Channels
14
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3C2512C-A2UR
Manufacturer:
YAGEO
Quantity:
60 000
Company:
Part Number:
AT32UC3C2512C-U
Manufacturer:
ATMEL
Quantity:
125
Company:
Part Number:
AT32UC3C2512C-Z2ZR
Manufacturer:
Atmel
Quantity:
1 499
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- AT32UC3C0128C PDF datasheet #3
- AT32UC3C0128C PDF datasheet #4
- Current page: 47 of 377
- Download datasheet (5Mb)
5.3
5.3.1
5.3.2
32000D–04/2011
Operation of the MMU and MMU exceptions
The tlbw instruction
TLB synonyms
The MMU uses both hardware and software mechanisms in order to perform its memory remap-
ping operations. The following tasks are performed by hardware:
The following tasks must be performed by software:
The tlbw instruction is implemented in order to aid in performing TLB maintenance. The instruc-
tion copies the contents of TLBEHI and TLBELO into the TLB entry pointed to by the ITLB or
DTLB Replacement Pointers (IRP/DRP) in the MMU Control Register. The TLBEHI[I] bit decides
if the ITLB or the DTLB should be addressed. IRP and DRP may in some implementations be
automatically updated by hardware in order to implement a TLB replacement algorithm in hard-
ware. Software may update them before executing tlbw in order to implement a software
replacement algorithm.
In some implementations, the TLB data structures may be mapped into the P4 space. In such
implementations, the TLB data structures may be updated with regular memory access
instructions.
Implementations using virtually indexed caches may be subject to cache inconsistencies,
depending on the page size used and number of lines in the cache. These inconsistencies may
occur when multiple virtual addresses are mapped to the same physical address, since a trans-
lated part of VPN may be used to index the cache. This implies that the same physical address
may be mapped to different cache lines, causing cache inconsistency.
Synonym problems can only appear when addressing data residing in a virtually indexed cache.
Addressing uncached memory or accessing untranslated memory will never cause synonym
problems.
It is the responsability of the OS to define a policy ensuring that no synonym problems may
arise. No hardware support is provided to avoid TLB synonyms.
1. The MMU decodes the virtual address and tries to find a matching entry in the TLB.
2. The matching entry is used to determine whether the access has the appropriate
3. If any other event arises that requires software intervention, an appropriate exception is
4. If the correct entry was found in the TLB, and the access permissions were not violated,
1. Setup of the MMU hardware by initializing the MMU-related registers and data struc-
2. Maintenance of the TLB structure. TLB entries are written, invalidated and replaced by
3. The MMU may generate several exceptions. Software exception handlers must be writ-
This entry is used to generate a physical address. If no matching entry is found, a TLB
miss exception is issued.
access rights, cacheability, bufferability and so on. If the access is not permitted, a TLB
Protection Violation exception is issued.
issued.
the memory access is performed without any further software intervention.
tures if needed.
means of software. A tlbw instruction is included in the instruction set to support this.
ten in order to service these exceptions.
AVR32
47
Related parts for AT32UC3C2512C
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
![U6046B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: