12-1
6000 Series user’s manual
IRQ routing and opto IRQs
Chapter 12:
IRQ routing and opto IRQs
≡
Interrupt routing
The PC Microcontroller provides routing of several interrupts that
originate from the 8-bit ISA bus to use additional AT interrupts. This
interrupt routing provides flexibility to the interrupt structure, allowing
the lower-ordered XT bus interrupts to be connected to the unused
higher-ordered AT interrupts.
The 8-bit bus interrupts that are routed are:
n
Bus IRQ3 to IRQ10
n
Bus IRQ4 to IRQ11
n
Bus IRQ5 to IRQ14
The dedicated on-card interrupts are:
n
IRQ3-COM2
n
IRQ4-COM1
n
OPTO A-remote reset
n
OPTO B-IRQ9
Table 12-1
6000 Series interrupt map
Interrupt
Description
IRQ0
System timer
IRQ1
Keyboard
IRQ2
Unavailable
IRQ3
COM2 serial port
IRQ4
COM1 serial port
IRQ5
LPT1
IRQ6
Floppy disk controller (available and connected to BIRQ6
or FDC)
IRQ7
Available and connected to BIRQ7
IRQ8
RTC alarm
IRQ9
User-configurable (connected to OPTO B)
IRQ10
Available and connected to BIRQ3
IRQ11
BIRQ4 on 6010, 6040, 6050; CTC on 6020; COM4 on 6030
IRQ12
PC/104 connector on 6010; CTC on 6020; COM3 on 6030;
A/D on 6040; unavailable on 6050
IRQ13
Floating point unit
IRQ14
Available and connected to BIRQ5 (HDC/BIRQ5 on 6010)
IRQ15
Power management interrupt
Summary of Contents for 6000 Series
Page 7: ...Notice to user PC 500 user s manual ...
Page 9: ...About this manual 6000 Series user s manual ...
Page 37: ...2 20 Quick start 6000 Series user s manual ...
Page 65: ...5 16 Serial ports 6000 Series user s manual ...
Page 87: ...6 22 EZ I O 6000 Series user s manual ...
Page 103: ...8 8 Analog I O 6000 Series user s manual ...
Page 119: ...14 2 PC 104 expansion 6000 Series user s manual ...
Page 133: ...16 4 Watchdog timer reset and remote reset 6000 Series user s manual ...
Page 139: ...17 6 Serial EEPROM 6000 Series user s manual ...
Page 157: ...21 2 Software utilities 6000 Series user s manual ...
Page 161: ...22 4 Troubleshooting 6000 Series user s manual ...
Page 177: ...A 16 6010 technical data 6000 Series user s manual ...
Page 215: ...D 16 6040 technical data 6000 Series user s manual ...
Page 229: ...F 2 Miscellaneous 6000 Series user s manual ...