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参数资料
| 型号： | M30621MCN-XXXGP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 14 MM, 0.65 MM PITCH, PLASTIC, QFP-80 |
| 文件页数： | 71/212页 |
| 文件大小： | 2676K |
| 代理商： | M30621MCN-XXXGP |
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CPU Rewrite Mode (Flash Memory Version)
162
Mitsubishi microcomputers
M16C / 62N Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Flash memory control register 0
Symbol
Address
When reset
FMR0
03B716
XX0000012
W
R
b7
b6
b5
b4
b3
b2 b1
b0
FMR00
Bit symbol
Bit name
Function
RW
0: Busy (being written or erased)
1: Ready
CPU rewrite mode
select bit (Note 1)
0: Normal mode
(Software commands invalid)
1: CPU rewrite mode
(Software commands acceptable)
FMR01
0: Boot ROM area is accessed
1: User ROM area is accessed
Lock bit disable
select bit (Note 2)
0: Block lock by lock bit data is
enabled
1: Block lock by lock bit data is
disabled
Flash memory reset bit
(Note 3)
0: Normal operation
1: Reset
User ROM area select bit
(Note 4) (Effective in only
boot mode)
FMR02
FMR03
FMR05
0
Note 1: For this bit to be set to “1”, the user needs to write a “0” and then a “1” to it in succession.
When it is not this procedure, it is not enacted in “1”. This is necessary to ensure that no
interrupt or DMA transfer will be executed during the interval. Write to this bit only when
executing out of an area other than the internal flash memory. Also only when NMI pin is
“H” level. Clear this bit to “0” after read array command.
Note 2: For this bit to be set to “1”, the user needs to write a “0” and then a “1” to it in succession
when the CPU rewrite mode select bit = “1”. When it is not this procedure, it is not
enacted in “1”. This is necessary to ensure that no interrupt or DMA transfer will be
executed during the interval.
Note 3: Effective only when the CPU rewrite mode select bit = 1. After write “1”, write “0” when
RY/BY status flag is “1”.
Note 4: Write to this bit only when executing out of an area other than the internal flash memory.
RY/BY status flag
Reserved bit
Must always be set to “0”
Flash identification register
Symbol
Address
When reset
FIDR
03B416
0016
W
R
b7 b6
b5
b4
b3
b2
b1 b0
FIDR0
Bit symbol
Bit name
Function
RW
Flash value output
HND: 0016
Flash identification value
Procedure
(1) Write FF16 to the address 03B416
(2) Read address 03B416
Read value = FF16 DINOR flash memory
Read value = 0016 HND flash memory
0: Pass
1: Error
Program status flag
FMR06
0: Pass
1: Error
Erase status flag
FMR07
Figure 1.29.1. Flash identification register and flash memory control register 0
Bit 5 of the flash memory control register 0 is a user ROM area select bit which is effective in only boot
mode. If this bit is set to “1” in boot mode, the area to be accessed is switched from the boot ROM area to
the user ROM area. When the CPU rewrite mode needs to be used in boot mode, set this bit to “1”. Note
that if the microcomputer is booted from the user ROM area, it is always the user ROM area that can be
accessed and this bit has no effect. When in boot mode, the function of this bit is effective regardless of
whether the CPU rewrite mode is on or off. Write to this bit only when executing out of an area other than
the internal flash memory.
Bit 6 of the flash memory control register 0 is the program status flag used exclusively to read the operating
status of the auto program operation. If a program error occurs, it is set to “1”. Otherwise, it is “0”.
Bit 7 of the flash memory control register 0 is the erase status flag used exclusively to read the operating
status of the auto erase operation. If an erase error occurs, it is set to “1”. Otherwise, it is “0”.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M30621MCP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30621MCP-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30621MC-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30622 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M30622E4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY |
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