|Main CPU : M6809
Sub/Graphics CPU : M6809
Sound CPU : M6809
MCU : HD63701 (Controls and DAC sound)
Sound chips : Namco custom 8 channel 4-bit PSG for sound effects, Yamaha YM3012 2 channel 8-bit DAC for voice, Yamaha YM2151+YM3012 FM chip for music.
Video resoution : 288x244 pixels (36x28 tiles),
3 scrolling 64x64 tilemapped playfields,
1 scrolling 64x32 tilemapped playfield,
2 fixed 36x28 tilemapped playfields.
Colours : 3 24-bit programmable RGB palette tables, 8 bits per color as follows :
127 16-color entries for the sprites,
8 256-color entries for the playfields,
8 256-color entries for the playfields shadow/highlight effects.
Notes : On system 1 boards there is a 3 pin connector which according to the schematics for Pacmania is a "3D grass driver", I'm assuming this actually means 3D glasses, that were never used.
Misc : Inter-processor communication is done via a 2K shared memory area.
Emulators : MAME