EPX-C414/Configuration
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Page 13
7.4 PCI Devices and Functions
Table 8:
Interrupt Status Register - 29CH
Bit
Name
Bit 0
COM1
Bit 1
COM2
Bit 2
COM3
Bit 3
COM4
Bit 4
N/A
Bit 5
N/A
Bit 6
N/A
Bit 7
N/A
WinSystems does not provide software support for implementing the Interrupt Status Register to share interrupts.
Some operating systems, such as Windows XP and Linux, have support for sharing serial port interrupts and examples
are available. The user must implement the appropriate software to share interrupts for the other devices.
Table 9:
Internal Devices
Bus
Device Function
Device ID
Device/Function Description
0
0
0
0F00h
Device: SoC transaction router
0
2
0
0F31h
Device: Graphics and display
0
19
0
0F20h (IDE)
0F21h (IDE)
0F22h (AHCI)
0F23h (AHCI)
Device: SATA
0
26
0
0F18h
Device: Trusted execution engine
0
27
0
0F04h
Device: HD audio
0
28
0
0F48h
Device: PCI Express*
Function: Root port 1
1
0F4Ah
Device: PCI Express*
Function: Root port 2
2
0F4Ch
Device: PCI Express*
Function: Root port 3
3
0F4Eh
Device: PCI Express*
Function: Root port 4
0
29
0
0F34h
Device: EHCI USB
0
31
0
0F1Ch
Device: Platform controller unit
Function: LPC: Bridge to Intel legacy
block
0
31
3
0F12h
Device: Platform controller unit
Function: SMBus port
