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STMPE1601 データシート(PDF) 44 Page - STMicroelectronics

部品番号 STMPE1601
部品情報  16-bit enhanced port expander with keypad and PWM controller Xpander Logic
PDF  58 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE1601 データシート(HTML) 44 Page - STMicroelectronics

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Keypad controller
STMPE1601
44/58
KPC_ROW_MSB
Keypad row MSB
Address:
0x61
Type:
R/W, R
Buffer:
Reset:
Description:
Keypad row scanning register
7
6
5
432
10
SCAN_PW1
SCAN_PW0
HIB_WK
-
RESERVED
R/W
R/W
R/W
R
R
R
R
R
1
1
0
000
00
[7:6] SCAN_PW[1:0]:
Row output scanning pulse width setting:
00: 1x period of internal clock
01: 16x period of internal clock
10: 64x period of internal clock
11: 128x period of internal clock (default)
(This setting is only applicable during normal operation mode. The scanning pulse width is 1x
period of 32 kHz clock during sleep mode.)
[5] HIB_WK:
1: to enable the keypad wake-up from hibernate mode
0: to disable
[4] -
[3:0] RESERVED:



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