參數(shù)資料
型號(hào): XC888CM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 49/119頁
文件大?。?/td> 895K
代理商: XC888CM
XC886/888CLM
Functional Description
Data Sheet
Prelimary
45
V0.1, 2006-02
3.3.1
The XC886/888 product family offers Flash devices with either 24 Kbytes or 32 Kbytes
of embedded Flash memory. Each Flash device consists of Program Flash (P-Flash)
bank(s) and a single Data Flash (D-Flash) bank with different sectorization shown in
Figure 11
. Both types can be used for code and data storage. The label “Data” neither
implies that the D-Flash is mapped to the data memory region, nor that it can only be
used for data storage. It is used to distinguish the different Flash bank sectorizations.
The XC886/888 ROM devices offer a single 4-Kbyte D-Flash bank.
Flash Bank Sectorization
Figure 11
Flash Bank Sectorization
The internal structure of each Flash bank represents a sector architecture for flexible
erase capability. The minimum erase width is always a complete sector, and sectors can
be erased separately or in parallel. Contrary to standard EPROMs, erased Flash
memory cells contain 0s.
The D-Flash bank is divided into more physical sectors for extended erasing and
reprogramming capability; even numbers for each sector size are provided to allow
greater flexibility and the ability to adapt to a wide range of application requirements.
Sector 9: 128-byte
Sector 8: 128-byte
Sector 5: 256-byte
Sector 3: 512-byte
Sector 1: 1-Kbyte
Sector 0: 1-Kbyte
Sector 7: 128-byte
Sector 6: 128-byte
Sector 4: 256-byte
Sector 2: 512-byte
Sector 0: 3.75-Kbyte
P-Flash
D-Flash
Sector 2: 128-byte
Sector 1: 128-byte
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