參數(shù)資料
型號(hào)： M38855FB-HP
廠商： Renesas Technology Corp.
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁數(shù)： 73/103頁
文件大?。?/td> 1580K
代理商： M38855FB-HP
3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
72
FLASH MEMORY MODE
The 3885 (flash memory version) has an internal new DINOR
flash memory that can be reprogrammed with 2 power sources
when V
CC
is 3.3 V.
For this flash memory , two flash memory modes are available in
which to read, program, and erase: parallel I/O and a CPU repro-
gram mode in which the flash memory can be manipulated by the
Central Processing Unit (CPU). Each mode is detailed in the
pages to follow.
Fig. 72 Block diagram of flash memory version
The flash memory of the 3885 is divided into User ROM area and
Boot ROM area as shown in Figure 72.
In addition to the ordinary user ROM area to store a microcom-
puter operation control program, 3885 program has a Boot ROM
area that is used to store a program to control reprogramming in
CPU reprogram mode. The user can store a reprogram control
software in this area that suits the user’s application system. This
Boot ROM area can be reprogrammed in only parallel I/O mode.
8000
16
Block 0 : 32Kbyte
User ROM area
BSEL = 0
4 Kbyte
F000
16
FFFF
16
FFFF
16
Boot ROM area
BSEL = 1
Notes 1:
The Boot ROM area can be rewritten in only parallel input/
output mode.
2:
To specify a block, use the maximum address in the block.
Product name
Flash memory
start address
M38859FF
1000
16
Parallel I/O mode
8000
16
Block 0 : 32 Kbyte
FFFF
16
CPU reprogram mode
User ROM area
4 Kbyte
F000
16
FFFF
16
Boot ROM area
User area / Boot area selection bit = 0
User area / Boot area selection bit = 1
Block 1 : 28 Kbyte
1000
16
1000
16
Block 1 : 28 Kbyte
相關(guān)PDF資料
PDF描述
M38855FE-HP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855FF-HP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855M7-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855M9-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855MA-XXXHP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38855FC-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855FD-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855FE-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855FF-HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M38855M1-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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