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參數(shù)資料
| 型號： | MB90M407APF |
| 廠商： | FUJITSU LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Original Microcontroller |
| 中文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 49/64頁 |
| 文件大小： | 310K |
| 代理商： | MB90M407APF |
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MB90M405 Series
49
16. 1 Mbit Flash Memory
The 1 Mbit flash memory is arrayed on the CPU memory map in banks FE
H
to FF
H
. It allows read and program
access from the CPU in the same manner as mask ROM. Data is written to and deleted from flash memory by
means of instructions from the CPU, via the flash memory interface circuit. This allows the implementation state
to be overwritten via onboard CPU control, allowing programs and data to be modified efficiently.
1 Mbit Flash Memory Length
128 Kword
×
8/64 Kword
×
16 bit (16 K
+
8 K
+
8 K
+
32 K
+
64 K) sector configuration.
Automated program algorithm (same as Embedded Algorithm* : MBM29F400TA)
Built-in deletion pause/resume function
Write/deletion completion detection by CPU interrupt
JEDEC standard command compatible
Sector-by-sector deletion possible (sectors can be combined freely)
Write/deletion guaranteed through 10,000 iterations
* : Embedded Algorithm is a trademark of Advanced Micro Device.
Method for Writing to and Deleting Flash Memory
There are two methods for writing to/deleting from flash memory :
1. Dedicated serial writer
(YDC AF220)
YDC: Yokogawa Digital Computer
2. Writing/deletion via program execution
It is not possible to simultaneously write to and read from flash memory. When writing to/deleting from flash
memory, programs in flash memory are temporarily copied to RAM, and run from there; this allows data to be
written to flash memory.
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