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X68000 Generic Chips

It also featured a wealth of off-the-shelf chips from a variety of manufacturers. The X68000's Okidata ADPCM sound chip was also used in at least one other game console, and Yamaha was essentially the only soundchip manufacturer of any import back in the day. Chips from Zilog, Motorola, Hitachi and NEC all made their way inside. As was the norm back then every chip that had extra pins was put into service for another device. The printer controller also handled joystick input, the serial controller handled the mouse and the MFP had its fingers in nearly every input or output port available.

Generic Chips
Function Part # Manufacturer Notes Datasheet
Real Time Clock RP5C15 Ricoh
Sound:nFM Synth YM2151 Yamaha Paired with YM3012 DAC. 8 note, 2 channel, noise
Sound: ADPCM MSM6258 Okidata Also used in the PCFX
FDD Control 72065 NEC
HDD Control MB89352A Fujitsu SCSI HDD Controller (Super, XVI + X68030)
Peripheral: Serial z85C30 Zilog Dual channel Serial controller. 1 for RS232, 1 for Mouse
Peripheral: Printer 8255 NEC Printer port, joystick ports.
DMA Control HD63450 Hitachi CRT raster generator (DMA I/O for FDD, HDD, Expansion Slots, ADPCM Audio?)
MFP 68901 Motorola Multi Function Peripheral controller. Controls monitor sync, Serial port,
real-time clock, soft-power, FM Synth, IRQ, keyboard
Math Co-Pro MC68881 Motorola Optional. XVI has a socket for it, older units require an add-on board
(often combined with RAM expansion)
Source: NFG Games + Inside X68000, SoftBank 1993
x68000/generic_chips.txt · Last modified: 2019/08/27 20:45 (external edit)