參數(shù)資料
型號(hào)： M37212M4
廠商： Mitsubishi Electric Corporation
英文描述： Single Chip 8 Bits Microcomputer(8位單片機(jī))
中文描述： 單芯片8位單片機(jī)（8位單片機(jī)）
文件頁(yè)數(shù)： 41/119頁(yè)
文件大?。?/td> 1308K
代理商： M37212M4
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41
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
M37212M4/M8–XXXSP, M37212M6–XXXSP/FP
M37212EFSP/FP
MITSUBISHI MICROCOMPUTERS
Rev. 1.0
8.6.10 Example of Master Transmission
An example of master transmission in the standard clock mode, at
the SCL frequency of 100 kHz and in the ACK return mode is shown
below.
Set a slave address in the high-order 7 bits of the I
2
C address
register (address 00D8
16
) and “0” in the RBW bit.
Set the ACK return mode and SCL = 100 kHz by setting “85
16
” in
the I
2
C clock control register (address 00DB
16
).
Set “10
16
” in the I
2
C status register (address 00D9
16
) and hold the
SCL at the HIGH.
{
Set a communication enable status by setting “48
16
” in the I
2
C
control register (address 00DA
16
).
Set the address data of the destination of transmission in the high-
order 7 bits of the I
2
C data shift register (address 00D7
16
) and set
“0” in the least significant bit.
}
Set “F0
16
” in the I
2
C status register (address 00D9
16
) to generate
a START condition. At this time, an SCL for 1 byte and an ACK
clock automatically occurs.
~
Set transmit data in the I
2
C data shift register (address 00D7
16
). At
this time, an SCL and an ACK clock automatically occurs.
When transmitting control data of more than 1 byte, repeat step
.
Set “D0
16
” in the I
2
C status register (address 00D9
16
). After this, if
ACK is not returned or transmission ends, a STOP condition will
be generated.
8.6.11 Example of Slave Reception
An example of slave reception in the high-speed clock mode, at the
SCL frequency of 400 kHz, in the ACK non-return mode, using the
addressing format, is shown below.
Set a slave address in the high-order 7 bits of the I
2
C address
register (address 00D8
16
) and “0” in the RBW bit.
Set the no ACK clock mode and SCL = 400 kHz by setting “25
16
” in
the I
2
C clock control register (address 00DB
16
).
Set “10
16
” in the I
2
C status register (address 00D9
16
) and hold the
SCL at the HIGH.
{
Set a communication enable status by setting “48
16
” in the I
2
C
control register (address 00DA
16
).
When a START condition is received, an address comparison is
made.
}
When all transmitted address are“0” (general call):
AD0 of the I
2
C status register (address 00D9
16
) is set to “1”and
an interrupt request signal occurs.
When the transmitted addresses match the address set in
:
ASS of the I
2
C status register (address 00D9
16
) is set to “1” and
an interrupt request signal occurs.
In the cases other than the above:
AD0 and AAS of the I
2
C status register (address 00D9
16
) are set
to
“0” and no interrupt request signal occurs.
~
Set dummy data in the I
2
C data shift register (address 00D7
16
).
When receiving control data of more than 1 byte, repeat step
.
When a STOP condition is detected, the communication ends.
相關(guān)PDF資料
PDF描述
M37212M6 Single Chip 8 Bits Microcomputer(8位單片機(jī))
M37212M8 Single Chip 8 Bits Microcomputer(8位單片機(jī))
M37212EFSP Single Chip 8 Bits Microcomputer(8位單片機(jī))
M37212M4-XXXSP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
M37212M8-XXXSP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37212M4-054SP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37212M4-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37212M6-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37212M6-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER
M37212M6-XXXSP/FP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
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