參數(shù)資料
型號(hào)： S83C154TXXX-25
廠商： ATMEL CORP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 53/109頁(yè)
文件大?。?/td> 10824K
代理商： S83C154TXXX-25
33
AT32UC3A
10. Memories
10.1
Embedded Memories
Internal High-Speed Flash
– 512 KBytes (AT32UC3A0512, AT32UC3A1512)
– 256 KBytes (AT32UC3A0256, AT32UC3A1256)
– 128 KBytes (AT32UC3A1128, AT32UC3A2128)
- 0 Wait State Access at up to 33 MHz in Worst Case Conditions
- 1 Wait State Access at up to 66 MHz in Worst Case Conditions
- Pipelined Flash Architecture, allowing burst reads from sequential Flash locations, hiding
penalty of 1 wait state access
- Pipelined Flash Architecture typically reduces the cycle penalty of 1 wait state operation
to only 15% compared to 0 wait state operation
- 100 000 Write Cycles, 15-year Data Retention Capability
- 4 ms Page Programming Time, 8 ms Chip Erase Time
- Sector Lock Capabilities, Bootloader Protection, Security Bit
- 32 Fuses, Erased During Chip Erase
- User Page For Data To Be Preserved During Chip Erase
Internal High-Speed SRAM, Single-cycle access at full speed
– 64 KBytes (AT32UC3A0512, AT32UC3A0256, AT32UC3A1512, AT32UC3A1256)
– 32KBytes (AT32UC3A1128)
10.2
Physical Memory Map
The system bus is implemented as a bus matrix. All system bus addresses are fixed, and they
are never remapped in any way, not even in boot. Note that AVR32 UC CPU uses unsegmented
translation, as described in the AVR32 Architecture Manual. The 32-bit physical address space
is mapped as follows:
Table 10-1.
AT32UC3A Physical Memory Map
Device
Start Address
Size
AT32UC3A0512
AT32UC3A1512
AT32UC3A0256
AT32UC3A1256
AT32UC3A0128
AT32UC3A1128
Embedded SRAM
0x0000_0000
64 Kbyte
32 Kbyte
Embedded Flash
0x8000_0000
512 Kbyte
256 Kbyte
128 Kbyte
EBI SRAM CS0
0xC000_0000
16 Mbyte
-
16 Mbyte
-
16 Mbyte
-
EBI SRAM CS2
0xC800_0000
16 Mbyte
-
16 Mbyte
-
16 Mbyte
-
EBI SRAM CS3
0xCC00_0000
16 Mbyte
-
16 Mbyte
-
16 Mbyte
-
EBI SRAM CS1
/SDRAM CS0
0xD000_0000
128 Mbyte
-
128 Mbyte
-
128 Mbyte
-
USB
Configuration
0xE000_0000
64 Kbyte
HSB-PB Bridge A
0xFFFE_0000
64 Kbyte
HSB-PB Bridge B
0xFFFF_0000
64 Kbyte
64 kByte
64 Kbyte
32058K
AVR32-01/12
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