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參數(shù)資料
| 型號(hào)： | UPD17244MC-xxx-5A4 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 41/102頁 |
| 文件大?。?/td> | 461K |
| 代理商： | UPD17244MC-XXX-5A4 |
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41
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
3.11 Selecting Whether Key Matrix Is Used or Not (Port 0E, 1A)
By using the following register file, whether P0E and P1A are used for a key matrix can be selected in bit units.
P1AKEY0
0
1
0
P1AKEY0
Address
RF: 06H
After reset
0H
R/W
R/W
1
P1AKEY1
2
P1AKEY2
3
0
Selects whether P1A
0
is used for key matrix or not
P1AKEY1
0
1
Selects whether P1A
1
is used for key matrix or not
P1AKEY2
0
1
Selects whether P1A
2
is used for key matrix or not
P1A
0
not used for key matrix
P1A
0
used for key matrix
P1A
2
not used for key matrix
P1A
2
used for key matrix
P1A
1
not used for key matrix
P1A
1
used for key matrix
P0EKEY0
0
1
0
P0EKEY0
Address
RF: 16H
After reset
0H
R/W
R/W
1
P0EKEY1
2
P0EKEY2
3
P0EKEY3
Selects whether P0E
0
is used for key matrix or not
P0EKEY1
0
1
Selects whether P0E
1
is used for key matrix or not
P0EKEY2
0
1
Selects whether P0E
2
is used for key matrix or not
P0EKEY3
0
1
Selects whether P0E
3
is used for key matrix or not
P0E
0
not used for key matrix
P0E
0
used for key matrix
P0E
1
not used for key matrix
P0E
1
used for key matrix
P0E
2
not used for key matrix
P0E
2
used for key matrix
P0E
3
not used for key matrix
P0E
3
used for key matrix
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