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STMPE2403 数据表(PDF) 49 Page - STMicroelectronics

部件名 STMPE2403
功能描述  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  63 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STMPE2403 数据表(HTML) 49 Page - STMicroelectronics

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STMPE2403
Keypad controller
49/63
12.3
KPC_col register
12.4
KPC_row_msb register
Bit
7
654
3
2
1
0
Name
Input Column 0 ~ 7
Read/Write
RW
RW
RW
RW
RW
RW
RW
RW
Reset Value
0
0
0
0
0
0
0
0
Table 46. Bit description
Bit
Name
Description
7
Input Column 7
‘1’ to turn on scanning of column 7; ‘0’ to turn off
6
Input Column 6
‘1’ to turn on scanning of column 6; ‘0’ to turn off
5
Input Column 5
‘1’ to turn on scanning of column 5; ‘0’ to turn off
4
Input Column 4
‘1’ to turn on scanning of column 4; ‘0’ to turn off
3
Input Column 3
‘1’ to turn on scanning of column 3; ‘0’ to turn off
2
Input Column 2
‘1’ to turn on scanning of column 2; ‘0’ to turn off
1
Input Column 1
‘1’ to turn on scanning of column 1; ‘0’ to turn off
0
Input Column 0
‘1’ to turn on scanning of column 0; ‘0’ to turn off
Bit
7
6
5
4
3
2
1
0
Name
ScanPW1
ScanPW0
Hib_Wk
-
Output Row 8 ~ 11
Read/Write
RW
RW
RW
R
RW
RW
RW
RW
Reset Value
1
1
0
0
0
0
0
0
Table 47. Bit description
Bit
Name
Description
7
ScanPW1
Pulse width setting of keypad scanning. Use “11” at all
times
6
ScanPW0
5
Hib_Wk
‘1’ to enable keypad wake-up from hibernate mode; ‘0’ to
disable
4-
-
3
Output Row 11
‘1’ to turn on scanning of row 11; ‘0’ to turn off
2
Output Row 10
‘1’ to turn on scanning of row 10; ‘0’ to turn off
1
Output Row 9
‘1’ to turn on scanning of row 9; ‘0’ to turn off
0
Output Row 8
‘1’ to turn on scanning of row 8; ‘0’ to turn off



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