IBM PS/2 Model 80 T1-T2 chipset
Chipset parts
(any brand) Discrete Logic
IBM 15F7917
IBM 72X7377 (DMA)
IBM 72X8299 (I/O controller)
Intel 8042AH (Keyboard Controller)
VLSI VL82C114 (Combination I/O)
Release date
1987-04-02
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Description:
Overview
Found on the model 80 Type 1 and 2 motherboards. It supports 16 or 20MHz operation. It is similar to the Model 50/60 chipset. It differs in that the 50/60 includes an additional chip (72X7385 Bus controller). It would appear that instead, this chipset replaces that functionality with discrete logic and two Intel 8259-2 (Programmable Interrupt Controllers), in order to interface the the 386 CPU. This logic has not been investigated further.
Documented parts
Last updated 2023-08-31T14:59:30Z
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