MC95FG0128A
68
Aug 02, 2018 Ver.2.9
priority than high interrupt number. If decided the priority, low interrupt number has a higher priority
than high interrupt number in that group.
10.12.3 External Interrupt Flag Register (EIFLAG)
The external interrupt flag register is
set to ‘1’ when the external interrupt generating condition is
satisfied. The flag is cleared when the interrupt routine is executed. Alternatively, the flag can be
cleared by writing a
‘0’ to it.
10.12.4 External Interrupt Edge Register (EIEDGE)
The External interrupt edge register determines which type of edge or level sensitive interrupt.
Initially, default value is level. For level, write ‘0’ to related bit. For edge, write ‘1’ to related bit.
10.12.5 External Interrupt Polarity Register (EIPOLA)
According to EIEDGE register, the external interrupt polarity (EIPOLA) register has a different
meaning. If EIEDGE is level type, EIPOLA is able to have Low/High level value. If EIEGDE is edge
type, EIPOLA is able to have rising/falling edge value.
10.12.6 External Interrupt Enable Register (EIENAB)
When the external interrupt enable register is written to
‘1’, the corresponding external pin interrupt is
enabled. The EIEDGE and EIPOLA register defines whether the external interrupt is activated on
rising or falling edge or level sensed.
10.12.7 Register Map
Table 10-3 Register Map
Name
Address
Dir
Default
Description
IE
A8H
R/W
00H
Interrupt Enable Register
IE1
A9H
R/W
00H
Interrupt Enable Register 1
IE2
AAH
R/W
00H
Interrupt Enable Register 2
IE3
ABH
R/W
00H
Interrupt Enable Register 3
IE4
ACH
R/W
00H
Interrupt Enable Register 4
IE5
ADH
R/W
00H
Interrupt Enable Register 5
IP
B8H
R/W
00H
Interrupt Priority Register
IP1
F8H
R/W
00H
Interrupt Priority Register 1
EIFLAG
A4H
R/W
00H
External Interrupt Flag Register
EIEDGE
A5H
R/W
00H
External Interrupt Edge Register
EIPOLA
A6H
R/W
00H
External Interrupt Polarity Register
EIENAB
A3H
R/W
00H
External Interrupt Enable Register
Summary of Contents for MC95FG0128A
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