參數(shù)資料
型號(hào)： M34570EDFP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36
封裝： 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-36
文件頁(yè)數(shù)： 47/69頁(yè)
文件大?。?/td> 687K
代理商： M34570EDFP
Under
development
Preliminary Specifications REV.1.02
Specifications in this manual are tentative and subject to change.
Mitsubishi Microcomputers
M32C/83 group
SINGLE-CHIP 16/32-BIT CMOS MICROCOMPUTER
52
Bus
Bus
In memory expansion mode or microprocessor mode, some pins function as bus control pins to input and
_____
______ ______ _________
output data from and to external devices. A0 to A22, A23, D0 to D15, MA0 to MA12, CS0 to CS3, WR/WR/CASL,
_________ _______ _________
_____ _____
_________
_______
WRH/BHE/CASH, RD/DW, BCLK/ALE, HLDA/ALE, HOLD, ALE/RAS, RDY are included as bus control pins.
Bus Settings
The BYTE pin, the DS register, the PM05 to PM04 bits in the PM0 register and the PM11 to PM10 bits in
the PM1 register determine bus settings.
Table 1.7.1 lists how to changing bus setting. Figure 1.7.1 shows the DS register.
Table 1.7.1. Bus Settings
Bus setting
Changed by
Selecting external address bus width
DS register
Selecting bus width after reset
BYTE pin (external space 3 only)
Selecting between separate bus or multiplex bus
PM05 to PM04 bits in PM0 register
Number of chip-select
PM11 to PM10 bits in PM1 register
Figure 1.7.1. DS Register
Notes :
1. After reset, this bit is set to "1" when the BYTE pin is set to "L". This bit is set to "0" when
the BYTE pin is set to "H".
Symbol
Address
When reset
DS
000B16
XXXX 10002 (BYTE pin = "L")
XXXX 00002 (BYTE pin = "H")
External data bus width control register
RW
DS0
DS1
DS2
DS3
0 : 8 bits wide
1 : 16 bits wide
0 : 8 bits wide
1 : 16 bits wide
0 : 8 bits wide
1 : 16 bits wide
0 : 8 bits wide
1 : 16 bits wide
Bit name
Function
Bit
symbol
Nothing is assigned. When write, should set to "0".
When read, its content is indeterminate.
External space 0 data
bus width select bit
External space 1 data
bus width select bit
External space 2 data
bus width select bit
External space 3 data
bus width select bit 1
b7
b6
b5
b4
b3
b2
b1
b0
相關(guān)PDF資料
PDF描述
M34570M4-XXXFP 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO36
M34570M8-XXXFP 4-BIT, MROM, MICROCONTROLLER, PDSO36
M34570EDFP 4-BIT, OTPROM, MICROCONTROLLER, PDSO36
M34584EDFP 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO42
M34584MD-XXXFP 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M34570M4 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34570M4-081FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34570M4-202FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34570M4-214FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
M34570M4-227FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*