NEC VR4181 mPD30181 User Manual page 261

Bit Name
7, 6 I3TYP(1:0)
5, 4 I2TYP(1:0)
3, 2 I1TYP(1:0)
1, 0 I0TYP(1:0)
CHAPTER 13 GENERAL PURPOSE I/O UNIT (GIU)
These bits define the type of interrupt generated when the GPIO3 pin is defined as
a general-purpose input:
00 : Negative edge triggered interrupt
01 : Positive edge triggered interrupt
10 : Low level triggered interrupt
11 : High level triggered interrupt
These bits define the type of interrupt generated when the GPIO2 pin is defined as
a general-purpose input:
00 : Negative edge triggered interrupt
01 : Positive edge triggered interrupt
10 : Low level triggered interrupt
11 : High level triggered interrupt
These bits define the type of interrupt generated when the GPIO1 pin is defined as
a general-purpose input:
00 : Negative edge triggered interrupt
01 : Positive edge triggered interrupt
10 : Low level triggered interrupt
11 : High level triggered interrupt
These bits define the type of interrupt generated when the GPIO0 pin is defined as
a general-purpose input:
00 : Negative edge triggered interrupt
01 : Positive edge triggered interrupt
10 : Low level triggered interrupt
11 : High level triggered interrupt
User's Manual U14272EJ3V0UM
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