FUJITSU F2MC-8L F202RA - Manual (Page 248)

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CHAPTER 10 EXTERNAL INTERRUPT CIRCUIT 1 (EDGE)
10.4.1 External Interrupt Control Register 1 (EIC1)
External interrupt control register 1 (EIC1) comprises bits for edge polarity selection
and interrupt control for the INT10 and INT11 external interrupt pins.
■ External Interrupt Control Register 1 (EIC1)
Figure 10.4-2 External Interrupt Control Register 1 (EIC1)
EIE0
0
1
SL01 SL00
0 0
0 1
1 0
1 1
EIR0
0
1
EIE1
0
1
SL11 SL10
0 0
0 1
1 0
1 1
EIR1
0
1
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
0024 H
EIR1 SL11 SL10 EIE1 EIR0 SL01 SL00 EIE0 00000000
B
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
Interrupt request enable bit 0
Disables interrupt request outputs
Enables interrupt request outputs
Edge polarity selection bits 0
Edge detection OFF
Rising edge
Falling edge
Both edges
External interrupt request flag bit 0
When being read When being written
Signal input with specified edge
or edges not detected
This bit is cleared
Signal input with specified edge
or edges detected
No change, does not affect other
operations
Interrupt request enable bit 1
Disables interrupt request outputs
Enables interrupt request outputs
Edge polarity selection bits 1
Edge detection OFF
Rising edge
Falling edge
Both edges
External interrupt request flag bit 1
When being read When being written
Signal input with specified edge
or edges not detected
This bit is cleared
Signal input with specified edge
or edges detected
No change, does not affect other
operations