Intel PPC-7508F M1 user manual Address Read Target Write Target Internal Unit, Ferr# /Ignne#

Appendix B Technical Summary

I/O Address	Read Target	Write Target	Internal Unit
80h	DMA Controller	DMA controller &	DMA
		LPC/PCI
81h-83h	DMA Controller	DMA Controller	DMA
84h-86h	DMA Controller	DMA Controller &	DMA
		LPC or PCI
87h	DMA Controller	DMA Controller	DMA
88h	DMA Controller	DMA Controller &	DMA
		LPC or PCI
89h-8Bh	DMA Controller	DMA Controller	DMA
8Ch-8Eh	DMA Controller	DMA Controller &	DMA
		LPC or PCI
08Fh	DMA Controller	DMA Controller	DMA
90h-91h	DMA Controller	DMA Controller	DMA
92h	Reset Generator	Reset Generator	Processor I/F
93h-9Fh	DMA Controller	DMA Controller	DMA
A0h-A1h	Interrupt Controller	Interrupt Controller	Interrupt
A4h-A5h	Interrupt Controller	Interrupt Controller	Interrupt
A8h-A9h	Interrupt Controller	Interrupt Controller	Interrupt
ACh-ADh	Interrupt Controller	Interrupt Controller	Interrupt
B0h-B1h	Interrupt Controller	Interrupt Controller	Interrupt
B2h-B3h	Power Management	Power Management	Power Management
B4h-B5h	Interrupt Controller	Interrupt Controller	Interrupt
B8h-B9h	Interrupt Controller	Interrupt Controller	Interrupt
BCh-BDh	Interrupt Controller	Interrupt Controller	Interrupt
C0h-D1h	DMA Controller	DMA Controller	DMA
D2h-DDh	Reserved	DMA Controller	DMA
DEh-DFh	DMA Controller	DMA Controller	DMA
F0h	See Note 3	FERR# /IGNNE#/	Processor interface
		Interrupt Controller
170h-177h	IDE Controller1	IDE Controller1	Forwarded to IDE
1F0h-1F7h	IDE Controller2	IDE Controller2	Forwarded to IDE
376h	IDE Controller1	IDE Controller1	Forwarded to IDE
3F6h	IDE Controller2	IDE Controller2	Forwarded to IDE
4D0h-4D1h	Interrupt Controller	Interrupt Controller	Interrupt
CF9h	Reset Generator	Reset Generator	Processor interface

Notes:

1.Only if IDE Standard I/O space is enabled for Primary Drive. Otherwise, the target is PCI.

2.Only if IDE Standard I/O space is enabled for Secondary Drive. Otherwise, the target is PCI.

3.If POS_DEC_EN bit is enabled, reads from F0h will not be decoded by the ICH2. If

POS_DEC_EN is not enabled, reads from F0h will forward to LPC.

PPC-7508F USER′S MANUAL Page: B-7