参数资料
型号: IS80C52CXXX-12:D
厂商: TEMIC SEMICONDUCTORS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
文件页数: 41/134页
文件大小: 3805K
14
8068U–AVR–06/2013
XMEGA A3
Not recommended for new designs -
Use XMEGA A3U series
7.7
Flash and EEPROM Page Size
The Flash Program Memory and EEPROM data memory are organized in pages. The pages are
word accessible for the Flash and byte accessible for the EEPROM.
Table 7-2 on page 14 shows the Flash Program Memory organization. Flash write and erase
operations are performed on one page at a time, while reading the Flash is done one byte at a
time. For Flash access the Z-pointer (Z[m:n]) is used for addressing. The most significant bits in
the address (FPAGE) gives the page number and the least significant address bits (FWORD)
gives the word in the page.
Table 7-2.
Number of words and Pages in the Flash.
Table 7-3 on page 14 shows EEPROM memory organization for the XMEGA A3 devices. EEE-
PROM write and erase operations can be performed one page or one byte at a time, while
reading the EEPROM is done one byte at a time. For EEPROM access the NVM Address Regis-
ter (ADDR[m:n]) is used for addressing. The most significant bits in the address (E2PAGE) gives
the page number and the least significant address bits (E2BYTE) gives the byte in the page.
Table 7-3.
Number of bytes and Pages in the EEPROM.
Devices
Flash
Page Size
FWORD
FPAGE
Application
Boot
Size
(words)
Size
No of Pages
Size
No of Pages
ATxmega64A3
64 KB + 4 KB
128
Z[7:1]
Z[16:8]
64K
256
4 KB
16
ATxmega128A3
128 KB + 8 KB
256
Z[8:1]
Z[17:9]
128K
256
8 KB
16
ATxmega192A3
192 KB + 8 KB
256
Z[8:1]
Z[18:9]
192K
384
8 KB
16
ATxmega256A3
256 KB + 8 KB
256
Z[8:1]
Z[18:9]
256K
512
8 KB
16
Devices
EEPROM
Page Size
E2BYTE
E2PAGE
No of Pages
Size
(Bytes)
ATxmega64A3
2 KB
32
ADDR[4:0]
ADDR[10:5]
64
ATxmega128A3
2 KB
32
ADDR[4:0]
ADDR[10:5]
64
ATxmega192A3
2 KB
32
ADDR[4:0]
ADDR[10:5]
64
ATxmega256A3
4 KB
32
ADDR[4:0]
ADDR[11:5]
128
相关PDF资料
PDF描述
IS80C52CXXX-20:R 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQCC44
IS80C52CXXX-25:D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
IS80C52CXXX-25:R 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
IS80C52CXXX-25SHXXX:D 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQCC44
IS80C52CXXX-30SHXXX:RD 8-BIT, MROM, 30 MHz, MICROCONTROLLER, PQCC44
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