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62
MI989
User’s Manual
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
IRQ 0
High precision event timer
IRQ 0
System timer
IRQ 8
High precision event timer
IRQ 7
AMD GPIO Controller
IRQ 4294967289
Standard SATA AHCI Controller
IRQ 4294967265~72
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4294967239~42 AMD Radeon(TM) Graphics
IRQ 4294967281~88
AMD USB 3.10 eXtensible Host Controller -
1.10 (Microsoft)
IRQ 4
Communications Port (COM1)
IRQ 3
Communications Port (COM2)
IRQ 10
Communications Port (COM3)
IRQ 11
Communications Port (COM4)
IRQ 6
Communications Port (COM5)
IRQ 6
Communications Port (COM6)
IRQ 4294967255~64 Intel(R) I211 Gigabit Network Connection #2
IRQ 4294967254
Intel(R) I211 Gigabit Network Connection
IRQ 4294967253
Intel(R) I211 Gigabit Network Connection
IRQ 4294967252
Intel(R) I211 Gigabit Network Connection
IRQ 4294967251
Intel(R) I211 Gigabit Network Connection
IRQ 4294967250
Intel(R) I211 Gigabit Network Connection
IRQ 4294967249
Intel(R) I211 Gigabit Network Connection
IRQ 4294967248
Intel(R) I211 Gigabit Network Connection
IRQ 4294967247
Intel(R) I211 Gigabit Network Connection
IRQ 4294967246
Intel(R) I211 Gigabit Network Connection
IRQ 4294967245
Intel(R) I211 Gigabit Network Connection
IRQ 4294967273~80
ASMedia USB 3.1 eXtensible Host
Controller - 1.10 (Microsoft)
IRQ 4294967244
AMD PSP 10.0 Device
IRQ 4294967243
AMD PSP 10.0 Device
IRQ 39
AMD Audio CoProcessor
IRQ 39
High Definition Audio Controller
Summary of Contents for MI989 Series
Page 1: ...MI989 Series AMD V2000 Mini ITX Motherboard User s Manual Version 1 0 June 2021...
Page 12: ...6 MI989 User s Manual 1 6 Block Diagram...
Page 15: ...General Information MI989 User s Manual 9 1 1 8 Dimensions...
Page 16: ...10 MI989 User s Manual This page is intentionally left blank...
Page 20: ...14 MI989 User s Manual 2 3 Jumper Connector Locations on MI989...
Page 34: ...28 MI989 User s Manual This page is intentionally left blank...
Page 49: ...BIOS Setup MI989 User s Manual 43 4 Serial Port 1 Configuration Serial Port 2 Configuration...
Page 52: ...46 MI989 User s Manual 4 4 6 CPU Configuration...
Page 53: ...BIOS Setup MI989 User s Manual 47 4 4 4 7 IDE Configuration...
Page 57: ...BIOS Setup MI989 User s Manual 51 4 4 4 12 NVMe Configuration...
Page 58: ...52 MI989 User s Manual 4 4 13 AMD CBS...
Page 60: ...54 MI989 User s Manual 4 5 2 North Bridge Configuration...
Page 64: ...58 MI989 User s Manual This page is intentionally left blank...