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參數(shù)資料
| 型號(hào)： | M37902FGCGP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單片16位CMOS微機(jī) |
| 文件頁數(shù)： | 104/143頁 |
| 文件大?。?/td> | 1463K |
| 代理商： | M37902FGCGP |
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M37902FCCHP, M37902FGCHP, M37902FJCHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
104
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.
Figure 112 shows the pin connection 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 FFB0
16
to FFBF
16
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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PDF描述 |
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| M37902FCCHP | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37902FGCHP | DIODE SCHOTTKY DUAL COMMON-ANODE 25V 150mW 0.32V-vf 200mA-IFM 1mA-IF 2uA-IR SOT-523 3K/REEL |
| M37902FJCHP | SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37905F8CFP | 16-BIT CMOS MICROCOMPUTER |
| M37905F8CSP | 16-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37902FGCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37902FJCHP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER |
| M37903S4CHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37905F8CFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
| M37905F8CSP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:16-BIT CMOS MICROCOMPUTER |
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