Справочник Пользователя для HP A2Y15AV

158

Datasheet, Volume 2

This 8-bit register is used to communicate interrupt line routing information. It is 
read/write and must be implemented by the device. POST software will write the 
routing information into this register as it initializes and configures the system.

The value in this register tells which input of the system interrupt controller(s) the 
device's interrupt pin is connected to. The device itself does not use this value; rather it 
is used by device drivers and operating systems to determine priority and vector 
information.

This register tells which interrupt pin the device uses. The Integrated Graphics Device 
uses INTA#.

The Integrated Graphics Device has no requirement for the settings of Latency Timers.

7:0

RW

00h

Uncore

Interrupt Connection (INTCON) 
This field is used to communicate interrupt line routing 

information. POST software writes the routing information into 

this register as it initializes and configures the system. The value 

in this register indicates to which input of the system interrupt 

controller the device's interrupt pin is connected.

7:0

RO

01h

Uncore

Interrupt Pin (INTPIN) 
As a single function device, the IGD specifies INTA# as its 

interrupt pin.
01h = INTA#.

7:0

RO

00h

Uncore

Minimum Grant Value (MGV) 
The IGD does not burst as a PCI compliant master.