PCI/PCIE/AGP bus interface and card management logic

Contents:

• PMC: Master control unit
• PTIMER: Timer engine
• PCI BARs and other means of accessing the GPU
• PBUS area
• Hardware sequencer
• PRMA: Real mode BAR access
• PFUSE: Configuration fuses
• PRING: Card internal bus
• PUNITS: Card subunit disable control
• PCI configuration space