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參數(shù)資料
| 型號(hào)： | M37920FCCGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 20 MM, 0.65 MM PITCH, PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 23/158頁(yè) |
| 文件大?。?/td> | 1261K |
| 代理商： | M37920FCCGP |
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119
M37920FCCGP, M37920FCCHP
M37920FGCGP, M37920FGCHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
Flash Memory Serial I/O Mode
In the flash memory serial I/O mode, addresses, data, and software
commands, which are required to read/program/erase the internal
flash memory, are serially input and output with a fewer pins and the
dedicated serial programmer.
In this mode, being different from the flash memory parallel I/O
mode, the CPU controls reprogramming of the flash memory (using
the CPU reprogramming mode), serial input of the reprogramming
data, etc.
The reprogramming control firmware for the flash memory serial I/O
mode has been stored in the boot ROM area on shipment of the
product from us. Note that, then, the flash memory serial I/O mode
will become unavailable if the boot ROM area has been repro-
grammed in the flash memory parallel I/O mode.
Note that, also, this reprogramming control firmware for the flash
memory serial I/O mode is subject to change.
Figures 118 and 119 show the pin connections in the flash memory
serial I/O mode.
The three pins, SCLK, SDA, and BUSY, are used to input and output
serial data.
The SCLK pin is the input pin of external transfer clocks. The SDA
pin is the I/O pin of transmit and receive data, and its output acts as
the N-channel open-drain output. To the SDA pin, connect an exter-
nal pullup resistor (about 1 k
). The BUSY pin is the output pin of the
BUSY flag (CMOS output) and goes “H” during BUSY periods owing
to a certain operation, such as transmit, receive, erase, program-
ming, etc.
Transmit and receive data are serially transferred 8 bits at a time.
In the flash memory serial I/O mode, only the user ROM area can be
reprogrammed; the boot ROM area is not accessible.
Addresses FFB016 to FFBF16 are the reserved area for the serial
programmer. Therefore, when the user uses the flash memory serial
I/O mode, do not program to this area.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37920FCCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920FGCGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920FGCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION |
| M37920S4CGP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16 BIT CMOS MICROCOMPUTER |
| M37P75C4P3 | 功能描述:汽車連接器 Pin Contact RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點(diǎn)電鍍:Nickel |
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