bryan@ihnet.UUCP (b. k. delaney) (08/01/85)
*** REPLACE THIS LINE WITH YOUR MESSAGE *** For those of who have not seen the August issue of ANTIC, here is a list and breif description of the major chips in the 520ST 1 2H-2123 Proprietary graphics controller (40 pin IC) 2 MC68B50P Serial controllers. One for the MIDI, One for keyboard 1 YM2149 F General Insturments sound chip (3 voices 30hz-20khz) 1 3H-2199BB Proprietary Memory Controller (MMU ?) 1 MC68000P8 8 mhz processor 1 36-2120BC Proprietary Glue Chip (Timing for everybody) 1 MC68901P Multifunctional Peripheral Controller (RS-232) 1 WD1772A-AH Western Digital Floppy Controller 1 3H-2130CC Proprietary DMA Controller It should be obvious from the number and size of the Custom chips that this computer has been under development a lot longer than one would think. Two years ? ihnet!bryan Bryan DeLaney BTL Naperville, IL