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Appendices
Appendix B. Interrupt Request Lines (IRQ)
Peripheral devices use interrupt request lines to notify CPU for the service
required. The following table shows the IRQ used by the devices on board.
Level
Function
IRQ0
System timer
IRQ1
Standard PS/2 Keyboard
IRQ3
Communications Port (COM1)
IRQ4
Communications Port (CON1)
IRQ5
Ethernet Controller
IRQ5
Ethernet Controller
IRQ5
SM Bus Controller
IRQ5
PCI Encryption/Decryption Controller
IRQ7
Communications Port (COM4)
IRQ10
Communications Port (COM3)
IRQ11
Communications Port (COM2)
IRQ12
Microsoft PS/2 Mouse
IRQ18
SDA Standard Compliant SD Host Controller
IRQ19
Standard AHCI 1.0 Serial ATA Controller
IRQ22
High Definition Audio Controller
Summary of Contents for Qseven EmQ-i2401
Page 1: ...I EmQ i2401 Qseven CPU Module User s Manual Version 1 1 2019 07 ...
Page 2: ... II This page is intentionally left blank ...
Page 10: ... viii This page is intentionally left blank ...
Page 11: ... 1 1 Chapter 1 Introduction Chapter 1 Introduction ...
Page 16: ... 6 This page is intentionally left blank ...
Page 17: ... 7 2 Chapter 2 Board Overview Chapter 2 Board Overview ...
Page 18: ... 8 Board Overview 2 1 Board Dimensions ...
Page 22: ... 12 This page is intentionally left blank ...
Page 23: ... 13 Chapter 3 BIOS 3 Chapter 3 BIOS ...
Page 43: ... 33 Appendices Appendices ...