SMSC LAN9420 Manual De Usuario

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Revision 1.22 (09-25-08)

SMSC LAN9420/LAN9420i

DATASHEET

3.2.1

PCI Bridge (PCIB) Block Diagram

Figure 3.1 PCI Bridge Block Diagram

PCI

PCI Bridge (PCIB)

PCI

Configuration

Space CSR

PCI Target

PME Gating

Interrupt Gating

PM Signal (From PM)

IRQ (From INT)

To/From CSR Blocks

nPME

nINT

PM Related Signals

(To/From PM)

PCI Master

To/From DMAC Arbiter