參數(shù)資料
型號(hào)： M37905F8CSP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDIP64
封裝： 0.750 INCH, 1.78 MM PITCH, PLASTIC, SDIP-64
文件頁(yè)數(shù)： 5/35頁(yè)
文件大小： 491K
代理商： M37905F8CSP
M37905F8CFP, M37905F8CSP
16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Som
e param
etric
lim
its are
subject
to change.
12
FLASH MEMORY MODE
These microcomputers contain the flash memory; and single-power-
supply reprogramming is available to this. These microcomputers
have the following three modes, enabling reading/programming/era-
sure for the flash memory:
Flash memory parallel I/O mode and Flash memory serial I/O
mode, where the flash memory is handled by using an external pro-
grammer.
CPU reprogramming mode, where the flash memory is handled by
the central processing unit (CPU).
As shown in Figure 4, the flash memory is divided into several
blocks, and erasure per block is possible.
Fig. 4 M37905F8CFP, M37905F8CSP: block configuration of internal flash memory
This internal flash memory has the boot ROM area storing the repro-
gramming control software for reprogramming in the CPU repro-
gramming mode and flash memory serial I/O mode, as well as the
user ROM area storing a certain control software for the normal op-
eration in the microcomputer mode.
Although our reprogramming control firmware for the flash memory
serial I/O mode has been stored into this boot ROM area on ship-
ment, the user-original reprogramming control software which is
more appropriate for the user’s system is reprogrammable into this
area, instead. Note that the reprogramming for the boot ROM area is
enabled only in the flash memory parallel I/O mode.
28 Kbytes
16 Kbytes
8 Kbytes
00100016
00FFFF16
007FFF16
00800016
00BFFF16
00C00016
00FFFF16
00E00016
00DFFF16
相關(guān)PDF資料
PDF描述
M37905M4C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
M37905M4C-XXXFP 16-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP64
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參數(shù)描述
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