參數(shù)資料
型號： MB90457PMT
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP48
封裝： 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁數(shù)： 48/78頁
文件大小： 680K
代理商： MB90457PMT
MB90455 Series
52
14. 192 K/256 K/512 Kbit Flash Memory Outline
The following three methods are provided for data writing and deleting on flash memory:
1. Parallel writer
2. Serial special-purpose writer
3. Writing/deleting by program execution
192 K/256 K/512 Kbit flash memory outline
The 192 K/256 K/512K-bit flash memory is allocated on FFH bank of CPU memory map. Using the function of
flash memory interface circuit, the memory allows read access and program access from CPU.
Writing/deleting on flash memory is performed by instruction from CPU via flash memory interface. Because
rewriting is allowed on mounted memory, modifying program and data is performed efficiently.
Features of 192 K/256 K/512 Kbit flash memory
Dividing into many sectors
Automatic program algorithm (Embedded AlgorithmTM: Similar to MBM29LV200.)
Built-in deletion pause/deletion resume function
Detection of completed writing/deleting by data polling and toggle bits.
Detection of completed writing/deleting by CPU interrupt.
Deletion is allowed on a sector-by-sector basis (sectors are combined freely).
Number of writing/deleting operations (minimum): 10,000 times
Sector protection
Extended sector protection
Temporary sector unprotection
Embedded AlgorithmTM is a registered trademark of Advanced Micro Device.
Note : A function of reading manufacture code and device code is not provided. These codes are not accessible
by command either.
Flash memory writing/deleting
Writing and reading data is not allowed simultaneously on the flash memory.
Data writing and deleting on the flash memory is performed by the processes as follows: Make a copy of
program on flash memory onto RAM. Then, execute the program copied on the RAM.
List of registers and reset values in flash memory
00
0
0X
0
76
bit
543210
× : Undefined
Flash memory control status register (FMCS)
相關PDF資料
PDF描述
MB90462PF 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64
MB90467P-SH 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PDIP64
MB90467PMC 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP64
MB90F463APMC 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64
MB90F462PMC 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64
相關代理商/技術參數(shù)
參數(shù)描述
MB90457S 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90457SPMT 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90460 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90462 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
MB90462PF 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:16-bit Proprietary Microcontroller
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