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STMPE2403 Fiches technique(PDF) 27 Page - STMicroelectronics

No de pièce STMPE2403
Description  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  63 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE2403 Fiches technique(HTML) 27 Page - STMicroelectronics

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STMPE2403
Interrupt system
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9.2
Interrupt Control Register (ICR)
ICR register is used to configure the Interrupt Controller. It has a global enable interrupt
mask bit that controls the interruption to the host.
ICR_msb
ICR_lsb
Bit
15
14
13
12
11
10
9876543
2
1
0
Reserved
IC2
IC1
IC0
R/W
RRRRRR
RRRRRRR
RW
RW
RW
Reset
Value
000000
0000000
0
0
0
Table 24. Register description
Bit
Name
Description
0IC[0]
Global Interrupt Mask bit
When this bit is written a ‘1’, it will allow interruption to the host. If it is written with
a ‘0’, then, it disables all interruption to the host. Writing to this bit does not affect
the IER value.
1IC[1]
Output Interrupt Type
‘0’ = Level interrupt
‘1’ = Edge interrupt
2IC[2]
Output Interrupt Polarity
‘0’ = Active Low / Falling Edge
‘1’ = Active High / Rising Edge



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