Avago Technologies LSI8751D - Manual (Page 87)

Configuration Registers 3-23
Register: 0x3C
Interrupt Line
Read/Write
IL Interrupt Line [7:0]
This register is used to communicate interrupt line routing
information. POST software writes the routing information
into this register as it 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.
Values in this register are specified by system
architecture.
Register: 0x3D
Interrupt Pin
Read Only
IP Interrupt Pin [7:0]
This register tells which interrupt pin the device uses. Its
value is set to 0x01, for the INTA/ signal.
7 0
IL
0 0 0 0 0 0 0 0
7 0
IP
0 0 0 0 0 0 0 1