參數(shù)資料
型號(hào)： MB90F498GPFM
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64
封裝： PLASTIC, LQFP-64
文件頁數(shù)： 57/90頁
文件大小： 849K
代理商： MB90F498GPFM
MB90495G Series
60
15. 512-Kbit Flash Memory
Overview
There are three methods available for writing/deleting data to/from flash memory :
1. Parallel writer
2. Serial dedicated writer
3. Program runtime write/delete
Overview of 512-Kbit flash memory
512-Kbit flash memory is arrayed in bank FFH on the CPU memory map. The flash memory interface circuit
provides read and program access from the CPU.
Since instructions from the CPU are carried out via the flash memory interface circuit, flash memory can be
overwritten at the implementation level. This allows you to efficiently improve programs and data.
Features of 512-Kbit Flash Memory
128 KWords
× 8-bit/64 KWords × 16-bit (16 K + 8 K + 8 K + 32 K) sector architecture
Auto program algorithm (Embedded AlgorithmTM : same as MBM29LV200)
On-chip delete suspend/delete resume functions
Data polling, write/delete completion detection through toggle bit
Write/delete completion detection from CPU overwrite
Sector-specific deletion available (sectors can be combined as desired)
Write/delete iterations (minimum) : 10,000
Embedded AlgorithmTM is a trademark of Advanced Micro Device.
Notes : There is no function to read the manufacture or device code.
These codes also cannot be accessed through commands.
Flash memory write/delete
It is not possible to simultaneously write to and read from flash memory.
When writing to or deleting from flash memory, first copy the program residing in flash memory into RAM,
then execute the program copied into RAM. This will allow you to write to flash memory.
相關(guān)PDF資料
PDF描述
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