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CHAPTER 11 EXTERNAL INTERRUPT CIRCUIT 2 (LEVEL)
11.4.1 External Interrupt 2 Control Register (EIE2)
The external interrupt circuit 2 control register (EIE2) enables or disables the interrupt
inputs to the external interrupt pins INT20 to INT27.
■ External Interrupt Circuit 2 Control Register (EIE2)
Figure 11.4-2 External Interrupt Circuit 2 Control Register (EIE2)
IE27 to IE20
0
1
bit7 bit6 bit5 bit4 bit3bit2 bit1 bit0
0036
H IE27 IE26 IE25 IE24 IE23 IE22 IE21 IE20 00000000B
R/W R/W R/W R/W R/W R/W R/W R/W
R/W : Readable/Writable
:
Initial value
Address Initial value
External interrupt request enable bits
Disables external interrupt request outputs
Enables external interrupt request outputs
Table 11.4-1 Correspondence between the Bits of the External Interrupt 2 Control Register
(EIE2) and the External Interrupt Pins
Register Bit name External interrupt pin
EIE2
bit7 IE27 INT27
bit6 IE26 INT26
bit5 IE25 INT25
bit4 IE24 INT24
bit3 IE23 INT23
bit2 IE22 INT22
bit1 IE21 INT21
bit0 IE20 INT20