参数资料
型号: M37224M3-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.778 MM PITCH, SHRINK, PLASTIC, DIP-42
文件页数: 27/83页
文件大小: 901K
代理商: M37224M3-XXXSP
M37224M3-XXXSP
MITSUBISHI MICROCOMPUTERS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
with ON-SCREEN DISPLAY CONTROLLER
33
Fig. 32. Port P3 Output Mode Control Register
Fig. 31. DAi Conversion Register
b7 b6 b5 b4 b3 b2 b1 b0
DAi conversion register (DAi) (i = 1 and 2) [Address 00DE16, 00DF16]
B
After reset
R W
DAi Conversion Register
0 to 5,
7
6
Indeterminate
0
Name
Functions
DA conversion set
bits
(DAi0 to DAi5)
b0
b1
b2
b3
b4
b5
Fix this bit to “0.”
1
00
000
0
0000
1
0
000
1
0
111
1
0
1
1111
1
1111
1
: 1/128Vcc
: 2/128Vcc
: 125/128Vcc
: 126/128Vcc
: 127/128Vcc
: 0/128Vcc
RW
0
b7
1
0
1
0
1
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 output mode control register (P3S) [address 00CD16]
B
Name
Functions
After reset R W
Port P3 Output Mode Control Register
0
0 : CMOS output
1 : N-channel open-drain output
0
1
0
4
to
7
0
P30 output structure
selection bit (P30S)
P31 output structure
selection bit (P31S)
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are “0.”
0 : CMOS output
1 : N-channel open-drain output
0
2
DA1 output enable bit
0 : P30 input/output
1 : DA1 output
0
3
DA2 output enable bit
0 : P31 input/output
1 : DA2 output
RW
R—
RW
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