OSCA (Old Skool Computer Architecture) is the default hardware configuration supplied for the V6Z80P's FPGA created by Phil Ruston. Its various features are controlled by Z80 Ports (peripherals) and memory locations (video system). This section documents these locations in detail:

• Brief description
• Memory map
• I/O port map
• Hardware Registers
• Update OSCA

Topics:

Sound:

• Audio system

Video:

• Palette
• Video modes
• Display Window
• Interlace mode
• Hi res mode
• Sprites
• Line-sync Co Pro (LineCop)
• Blitter
• Line Draw
• Internal Timing

Misc:

• Maths assist unit