Figure 12.3B External Interrupt Circuit Registers - Fujitsu F2MC-8L MB89620 Series Hardware Manual

n External Interrupt Circuit Registers
EIC1 (External interrupt 1 control register)
EIC2 (External interrupt 2 control register)
R/W: Readable and writable
— : Unused
X : Indeterminate
n External Interrupt Circuit Interrupt Sources
IRQ0: External interrupt circuit generates an interrupt request (IRQ0) if an edge of the selected
polarity is input to the external interrupt pin (INT0) when interrupt request output is enabled
(EIC1: EIE0 = "1").
IRQ1: External interrupt circuit generates an interrupt request (IRQ1) if an edge of the selected
polarity is input to the external interrupt pin (INT1) when interrupt request output is enabled
(EIC1: EIE1 = "1").
IRQ2: External interrupt circuit generates an interrupt request (IRQ2) if an edge of the selected
polarity is input to the external interrupt pin (INT2) when interrupt request output is enabled
(EIC2: EIE2 = "1").
IRQ3: External interrupt circuit generates an interrupt request (IRQ3) if an edge of the selected
polarity is input to the external interrupt pin (INT3) when interrupt request output is enabled
(EIC2: EIE3 = "1").
MB89620 series
Address Bit 7 Bit 6 Bit 5
0024 EIR1 — SEL1
H
R/W R/W
IRQ1
Address Bit 7 Bit 6 Bit 5
0025 EIR3 — SEL3
H
R/W R/W
IRQ3

Figure 12.3b External Interrupt Circuit Registers

CHAPTER 12 EXTERNAL INTERRUPT CIRCUIT (EDGE)
Bit 4 Bit 3 Bit 2 Bit 1
EIE1 EIR0 — SEL0
R/W R/W R/W
IRQ0
Bit 4 Bit 3 Bit 2 Bit 1
EIE3 EIR2 — SEL2
R/W R/W R/W
IRQ2
Bit 0 Initial value
EIE0 0X000X00
B
R/W
Bit 0 Initial value
EIE2 0X000X00
B
R/W
235
12