參數(shù)資料
型號(hào)： M37470M4-751SP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 19/46頁(yè)
文件大?。?/td> 646K
代理商： M37470M4-751SP
19
7470/7471 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Fig. 10 Structure of serial I/O mode register
BYTE SPECIFY MODE
The serial I/O has a byte specify mode that allows one specific
byte data to be selected for transmission or reception when serial
I/O circuits of two or more microcomputers are connected to send
or receive data through one bus. The data to be sent or received
can be specified by writing a value into the byte counter. The value
written in the byte counter is decremented by one each time eight
cycles of transfer clock are input. When the value in the byte
counter becomes “0”, serial transmission/reception is done by the
next eight cycles of transfer clock. When the value in the byte
counter is not “0”, the output on the S
OUT
pin is driven “H” by the
falling edge of the first transfer clock pulse to inhibit transmission/
reception.
Serial I/O interrupt requests are generated only when serial trans-
mission/reception is done after the value in the byte counter is
decremented to “0”. When the SA
RDY
signal output is selected, the
SA
RDY
signal is driven “L” by the last rising edge of the transfer
clock after the value in the byte counter is decremented to “0”.
Note that in the byte mode, an external clock must be used as the
sync. clock for the purpose of the mode.
b7
b0
Serial I/O mode register (SM)
(Address 00DC
16
)
Synchronous clock selection bit
0 : External clock
1 : Internal clock
Internal clock selection bits
00 : f(X
IN
) or f(Xc
IN
) divided by 8
01 : f(X
IN
) or f(Xc
IN
) divided by 16
10 : f(X
IN
) or f(Xc
IN
) divided by 32
11 : f(X
IN
) or f(Xc
IN
) divided by 512
Serial I/O port selection bit
0 : Normal I/O port
1 : S
OUT
, CLK pins
Note :
Do not select f(X
CIN
) as the count source in the 7470 group.
Serial I/O byte specify mode selection bit
0 : Normal mode
1 : Byte specify mode
S
RDY
signal output selection bit
0 : Normal I/O port
1 : S
RDY
signal output pin
S
RDY
signal selection bit
0 : S
RDY
signal
1 : SA
RDY
signal
P1
5
/S
OUT,
P1
7
/S
RDY
output structure selection bit
0 : CMOS output
1 : N-channel open drain output
相關(guān)PDF資料
PDF描述
M37470M4-768SP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M4-779SP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M8-421SP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37471E8-XXXFP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37471E8-XXXSP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37470M4-768SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M4-779SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M4-XXXSP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M8 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37470M8-421SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-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

*
*
*