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STMPE2401 Arkusz danych(PDF) 45 Page - STMicroelectronics

Numer części STMPE2401
Szczegółowy opis  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  55 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE2401 Arkusz danych(HTML) 45 Page - STMicroelectronics

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Keypad controller
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Table 44. KPC_data_byte1 register
Bit
7
654321
0
Name
Up/Down
R3R2R1R0C2
C1
C0
Read/Write
R
RRRRRRR
Reset Value
1
111100
0
Bit
Name
Description
7
Up/Down
‘0’ for key-down, ‘1’ for key-up
6
R3
row number of key 2 (valid range : 0-11)
0x1111 for No Key
5R2
4R1
3R0
2
C2
column number of key 2 (valid range : 0-7)
1C1
0C0
Table 45. KPC_data_byte2 register
Bit
7
6
5
432
10
Name
-
-
-
-
Dedicated Key 0 ~ 3
Read/Write
R
R
R
RR
RRR
Reset
Value
0
0
0
011
11
Bit
Name
Description
7-
-
6-
-
5-
-
4-
-
3
Dedicated Key 3
‘0’ for key-down, ‘1’ for key-up
2
Dedicated Key 2
‘0’ for key-down, ‘1’ for key-up
1
Dedicated Key 1
‘0’ for key-down, ‘1’ for key-up
0
Dedicated Key 0
‘0’ for key-down, ‘1’ for key-up



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