參數(shù)資料
型號(hào)： STMPE2401TBR
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 24 I/O, PIA-GENERAL PURPOSE, PBGA36
封裝： LEAD FREE, TFBGA-36
文件頁(yè)數(shù)： 38/55頁(yè)
文件大?。?/td> 959K
代理商： STMPE2401TBR
STMPE2401
Keypad controller
43/55
13.4
KPC_row_lsb register
13.5
KPC_ctrl_msb register
Table 40. KPC_row_lsb register
Bit
76
5
4
3
210
Name
output Row 0 ~ 7
Read/Write
WW
W
WWWW
Reset Value
00
0
000
Bit
Name
Description
7
output Row 7
‘1’ to turn on scanning of row 7; ‘0’ to turn off
6
output Row 6
‘1’ to turn on scanning of row 6; ‘0’ to turn off
5
output Row 5
‘1’ to turn on scanning of row 5; ‘0’ to turn off
4
output Row 4
‘1’ to turn on scanning of row 4; ‘0’ to turn off
3
output Row 3
‘1’ to turn on scanning of row 3; ‘0’ to turn off
2
output Row 2
‘1’ to turn on scanning of row 2; ‘0’ to turn off
1
output Row 1
‘1’ to turn on scanning of row 1; ‘0’ to turn off
0
output Row 0
‘1’ to turn on scanning of row 0; ‘0’ to turn off
Table 41. KPC_ctrl_msb register
Bit
7
6
54
3
210
Name
ScanCount0 ~ 3
DKey_0 ~ 3
Read/Write
W
WW
W
WWW
Reset Value
0
00
0
000
Bit
Name
Description
7
ScanCount3
Number of key scanning cycles elapsed before a confirmed
key data is updated into output data FIFO (0 ~ 15 cycles)
6
ScanCount2
5
ScanCount1
4
ScanCount0
3
DKey_3
Set ‘1’ to use Input Column 3 as dedicated key
2
DKey_2
Set ‘1’ to use Input Column 2 as dedicated key
1
DKey_1
Set ‘1’ to use Input Column 1 as dedicated key
0
DKey_0
Set ‘1’ to use Input Column 0 as dedicated key
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