參數(shù)資料
型號(hào): M37212M4-XXXSP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDIP52
封裝: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-52
文件頁數(shù): 62/119頁
文件大?。?/td> 1308K
代理商: M37212M4-XXXSP
47
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
Fig. 8.7.3 14-bit PWM Timing (f(XIN) = 8 MHz)
0.25
s
b7b0
b6b5b4b3b2b1
0
01
0110
b13b6
00
01
0110
b0
b5
10
100
0
Set “2C16” to DA-H register.
[DA-H
register]
DH
At writing of DA-L
b0
b6b5b4b3b2b1
0
10100
Set “2816” to DA-L register.
[DA-L register]
DL
At writing of DA-L
These bits decide HIGH level area
of fundamental waveform.
These bits decide smaller interval “tm” in which HIGH leval
area is [HIGH level area of fundamental waveform +
τ ].
Minimum
resolution bit
width 0.25
s
High-order 8-bit
value of DA latch
!
HIGH level area of
fundamental waveform
FF00
D3
FEFD … D6D40201
D5
14-bit
PWM output
8-bit
counter
0.25
s!44
FF00
D3
FEFDD6D40201
D5
14-bit
PWM output
8-bit
counter
0.25
s!45
Fundamental
waveform
Waveform of smaller interval “tm” specified by low-order 6 bits
Fundamental waveform of smaller interval
“tm” which is not specified by low-order 6
bits is not changed.
14-bit PWM output
Low-order 6-bit output of
DA latch
0.25
s!44
τ = 0.25 s
T = 4096
s @
Repeat period
t0
t1
t2
t3
t4
t5
t59
t60
t61
t62
t63
[DA latch]
……
b7
2C 2B 2A
03 02 01002C 2B 2A
03 02 0100
相關(guān)PDF資料
PDF描述
M37212EFSP 8-BIT, OTPROM, MICROCONTROLLER, PDIP52
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M37221EFSP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42
M37221M6-XXXFP 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDSO42
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
M37212M8-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
M37220M3 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