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6. INTERRUPT
6-1. IRQ MAPPING
Master 8259
Slave 8259
IRQ0
IRQ1
IRQ2
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
= No Using
[ ] = This function is used with 0ohm Resistor, etc.
Extended
Interrupt
IRQx0
IRQx1
IRQx2
IRQx3
IRQx4
IRQx5
IRQx6
IRQx7
IRQx8
IRQx9
IRQx10
IRQx11
IRQx12
IRQx13
IRQx14
IRQx15
• IRQ9 (SCI) is assigned for interruption of POS Device, and does not support ACPI.
• IRQ10 is reserved for interruption of Serial4.
Fixed ISA Default Power On Default
System timer
Timer
Keyboard
KBC
PIC cascade
(Cascade)
RTC/CMOS
RTC/CMOS
—
IRQx
(COM4)
ISA/Serial4
(COM3)
ISA/Serial3
Mouse
PCI/(ISA)/[KBC]
Coprocessor
Primary IDE
HDC
Secondary IDE
Serial7
COM2
Serial2
u/Serial4
COM4
COM1
Serial1
u/Serial3
COM3
(LPT2)
ISA
FDC
FDC
LPT1
LPT1
On-Board POS Device
MCR
Serial5 [Built-in Printer]
Serial6 [VFD]
POS Key
CSIO1 I/F
CSIO2 I/F
FROM Busy
POFF
SINT0
Reserved [Mode Switch]
TC0OVF
TC0CMP
TC1CMP
Serial4 (COM6)
Serial3 (COM5)
Clerk Switch
Available Device
Timer
KBC
(Cascade)
RTC/COMS
IRQx
Serial4/3/7 / ISA
Serial3/4/7 / ISA
PCI/(ISA)/[KBC]
u
u
HDC
Serial7/3/4 / IRQx
Serial2
u/Serial4
Serial1
u/Serial3
ISA
FDC
LPT1
For UP-E12MR/E12MR2/J12MR2
For UP-T80BP
For UP-P20DP/I20DP
(BE-8500)
For POS key I/F(BE-8500)
For ER-A8DP(UP-5700)
not use
Reserved
Only for V Model
UP-5900VS CIRCUIT DESCRIPTION
5 – 5
UP-5900 Recommended
Timer
KBC
u
RTC/CMOS
IRQx
Serial4
Serial3
PCI
u
HDC
Touch Panel
COM2
u
COM1
u
PCI
FDC
LPT1
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