![background image](http://html1.mh-extra.com/html/ibase-technology/mb998-series/mb998-series_user-manual_3302200088.webp)
80
MB998
User’s Manual
B.
Interrupt Request Lines (IRQ)
The following table shows the IRQ used by the devices on board.
Level
Function
IRQ 0
System timer
IRQ 1
Standard PS/2 Keyboard
IRQ 3
Communications Port (COM2)
IRQ 4
Communications Port (COM1)
IRQ 5
Communications Port (COM3)
IRQ 7
Communications Port (COM4)
IRQ 12
Microsoft PS/2 Mouse
IRQ 14
Intel(R) Serial IO GPIO Host Controller -
INTC1056
IRQ 16
Intel(R) Serial IO UART Host Controller -
7AA8
IRQ 17
High Definition Audio Controller
IRQ 19
Intel(R) Active Management Technology -
SOL (COM13)
IRQ 27
Intel(R) Serial IO I2C Host Controller - 7ACC
IRQ 29
Intel(R) Serial IO I2C Host Controller - 7ACE
IRQ 31
Intel(R) Serial IO I2C Host Controller - 7AFC
IRQ 32
Intel(R) Serial IO I2C Host Controller - 7AFD
IRQ 37
Intel(R) Serial IO SPI Host Controller - 7AAB
IRQ 43
Intel(R) Serial IO I2C Host Controller - 7ACF
IRQ 55~IRQ 204
Microsoft ACPI-Compliant System
IRQ 256~IRQ 511
Microsoft ACPI-Compliant System
IRQ 4294967239
Intel(R) Management Engine Interface #1
IRQ 4294967240~64 Intel(R) Ethernet Controller I226-LM
IRQ 4294967265~89 Intel(R) Ethernet Controller I226-V
IRQ 4294967290
Intel(R) USB 3.20 eXtensible Host Controller -
1.20 (Microsoft)
IRQ 4294967291
Intel(R) UHD Graphics 770
IRQ 4294967292
Standard SATA AHCI Controller
IRQ 4294967293
Intel(R) PCI Express Root Port #4 - 7ABB
IRQ 4294967294
Intel(R) PCI Express Root Port #3 - 7ABA
Summary of Contents for MB998 Series
Page 8: ...viii MB998 User s Manual This page is intentionally left blank...
Page 14: ...6 MB998 User s Manual 1 6 Block Diagram...
Page 15: ...General Information MB998 User s Manual 7 1 1 7 Product View Top View Bottom View...
Page 16: ...8 MB998 User s Manual I O View 1 8 Board Dimensions...
Page 20: ...12 MB998 User s Manual 2 3 Jumper Connector Locations...
Page 34: ...26 MB998 User s Manual 2 5 7 J6 M 2 M Key NVME CPU 2 5 8 J7 PWM Programming Factory use only...
Page 36: ...28 MB998 User s Manual 2 5 10 J9 eSPI Debug Factory use only...
Page 38: ...30 MB998 User s Manual 2 5 12 J11 DDR5 UDIMM CHA 0 2 5 13 J12 DDR5 UDIMM CHB 0...
Page 40: ...32 MB998 User s Manual 2 5 16 J15 M 2 B Key Socket 2 5 17 J16 SIM Card Slot...
Page 48: ...40 MB998 User s Manual This page is intentionally left blank...
Page 73: ...BIOS Setup MB998 User s Manual 65 4 4 4 11 NVMe Configuration...
Page 83: ...BIOS Setup MB998 User s Manual 75 4 4 9 MEBx...
Page 84: ...76 MB998 User s Manual This page is intentionally left blank...