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ST72251 数据表(PDF) 4 Page - STMicroelectronics

部件名 ST72251
功能描述  ST7 KEYPAD DECODING TECHNIQUES, IMPLEMENTING WAKE-UP ON KEYSTROKE
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST72251 数据表(HTML) 4 Page - STMicroelectronics

  ST72251 Datasheet HTML 1Page - STMicroelectronics ST72251 Datasheet HTML 2Page - STMicroelectronics ST72251 Datasheet HTML 3Page - STMicroelectronics ST72251 Datasheet HTML 4Page - STMicroelectronics ST72251 Datasheet HTML 5Page - STMicroelectronics ST72251 Datasheet HTML 6Page - STMicroelectronics ST72251 Datasheet HTML 7Page - STMicroelectronics ST72251 Datasheet HTML 8Page - STMicroelectronics ST72251 Datasheet HTML 9Page - STMicroelectronics Next Button
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 4 / 10 page
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KEYPAD
4/10
The keypad code is in the file constant.asm as follows:
.keypad
DC.B
$0E,$0E,$1
;PC0PA0
DC.B
$0E,$0D,$2
;PC0PA1
DC.B
$0E,$0B,$3
;PC0PA2
DC.B
$0E,$07,$F
;PC0PA3
DC.B
$0D,$0E,$4
;PC1PA0
DC.B
$0D,$0D,$5
;PC1PA1
DC.B
$0D,$0B,$6
;PC1PA2
DC.B
$0D,$07,$E
;PC1PA3
DC.B
$0B,$0E,$7
;PC2PA0
DC.B
$0B,$0D,$8
;PC2PA1
DC.B
$0B,$0B,$9
;PC2PA2
DC.B
$0B,$07,$D
;PC2PA3
DC.B
$07,$0E,$A
;PC3PA0
DC.B
$07,$0D,$0
;PC3PA1
DC.B
$07,$0B,$B
;PC3PA2
keypad_top
DC.B
$07,$07,$C
;PC3PA3



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