参数资料
型号: M37221M8H-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件页数: 107/112页
文件大小: 1179K
代理商: M37221M8H-XXXSP
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00
Oct 01, 2002
page 94 of 110
REJ03B0134-0100Z
Address 00C716
b7 b6 b5 b4 b3 b2 b1 b0
Port P3 direction register (D3) [Address 00C716]
B
Name
Functions
After reset R W
Port P3 Direction Register
0
0 : Port P30 input mode
1 : Port P30 output mode
0
1
0 : Port P31 input mode
1 : Port P31 output mode
0
Port P3 direction register
R W
indeterminate
Nothing is assigned. These bits are write disable bits.
When these bits are read out, the values are indeterminate.
R —
3 to 7
20 : Port P32 input mode
1 : Port P32 output mode
0
R W
Addresses 00C116, 00C316, 00C516
b7 b6 b5 b4 b3 b2 b1 b0
Port Pi direction register (Di) (i=0,1,2) [Addresses 00C1 16, 00C316, 00C516]
B
Name
Functions
After reset R W
Port Pi Direction Register
00 : Port Pi0 input mode
1 : Port Pi0 output mode
0
1
0 : Port Pi1 input mode
1 : Port Pi1 output mode
0
2
0 : Port Pi2 input mode
1 : Port Pi2 output mode
0
30 : Port Pi3 input mode
1 : Port Pi3 output mode
0
40 : Port Pi4 input mode
1 : Port Pi4 output mode
0
50 : Port Pi5 input mode
1 : Port Pi5 output mode
0
60 : Port Pi6 input mode
1 : Port Pi6 output mode
0
7
0 : Port Pi7 input mode
1 : Port Pi7 output mode
0
Port Pi direction register
RW
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