Revision 1.02 – April 12, 2007
S5920 – PCI Product: PCI Configuration Registers
Data Book
This register identifies which PCI interrupt, if any, is
connected to the controller’s PCI interrupt pins. The
allowable values are 0 (no interrupts), 1 (INTA#), 2
(INTB#), 3 (INTC#), and 4 (INTD#). The default power-
up value assumes INTA#.
INTERRUPT PIN REGISTER (INTPIN)
Interrupt Pin
Register Name:
3Dh
Address Offset:
Power-up value:
Boot-load:
Attribute:
01h
External nvRAM offset 7Dh
Read Only
8 bits
Size:
Figure 23. Interrupt Pin Register
Bit
7
3
2
1
0
Value
00h
X
X
X
Pin Number
000 None
001 INTA#
010 INTB#
011 INTC#
100 INTD#
101 Reserved
11X Reserved
Reserved
(All Zeros - RO)
AMCC Confidential and Proprietary
DS1596
68
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
