參數(shù)資料
型號: M37641M8-XXXFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80
文件頁數(shù): 96/136頁
文件大?。?/td> 1672K
代理商: M37641M8-XXXFP
62
7641 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
[Data Bus Buffer Status Register 0, 1 (DBBS0, DBBS1)]
004916, 004D16
The data bus buffer status registers 0, 1 consist of eight bits each.
Bits 0, 1, and 3 are read-only bits and indicate the status of the
data bus buffer. Bits 2, 4, 5, 6, and 7 are user definable flags
which can be programed, and can be read/written. The host CPU
can only read this register when the A0 pin is set to “H”.
Bit 0: Output buffer full flag OBF0, OBF1
When writing data to the output data bus buffer, this flag is set to
“1”. When reading the output data bus buffer from the host CPU,
this flag is cleared to “0”.
Bit 1: Input buffer full flag IBF0, IBF1
When writing data from the host CPU to the input data bus
buffer, this flag is set to “1”. When reading the input data bus
buffer from the slave CPU side, this flag is are cleared to “0”.
Bit 3: A0 flag A00, A01
When writing data from the host CPU to the input data bus
buffer, the level of the A0 pin is latched.
[Input Data Bus Buffer Registers 0, 1 (DBBIN0, DBBIN1)]
004816, 004C16
Data on the data bus is latched to DBBIN0 or DBBIN1 by writing
request from the host CPU. Data of DBBINs can be read from the
Data Bus Buffer Registers (address 004816 or 004C16) on the
SFR area.
[Output Data Bus Buffer Registers 0, 1 (DBBOUT 0,
DBBOUT1)] 004816, 004C16
When writing data to the Data Bus Buffer Registers (address
004816 or 004C16) on the SFR area, data is set to DBBOUT0 or
DBBOUT1. Data of DBBOUTs is output onto the data bus by per-
forming the reading request from the host CPU when the A0 pin is
set to “L”.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37641M8-XXXHP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M376420RS 制造商:OKI 功能描述:3764-20 NOTES
M3764-20RS 制造商:OKI 功能描述:3764-20 NOTES 制造商: 功能描述:Dynamic RAM, Page Mode, 64K x 1, 16 Pin, Plastic, DIP 制造商:OK International 功能描述:Dynamic RAM, Page Mode, 64K x 1, 16 Pin, Plastic, DIP
M3-7643A-S 制造商:Harris Corporation 功能描述:
M37643F8E8-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER