Atari STBook Hardware Specification

Atari Corporation's own hardware specification for the Atari ST Book, dated 10 September 1992. It describes the MC68HC000 main system, the COMBO IC, the pseudo-static RAM and its refresh machine, the IDE interface and register map, the YM-3439 sound generator, the Ricoh RP5C15 real-time clock, the SHADOW LCD controller and the BLiTTER, together with the pin assignments for every external port and the 120-pin STBook/STylus expansion bus.

Download the specification here: File:Atari STBook Hardware Specification.pdf