IBM (PS/2 Model 70 T2 chipset)
IBM 33F5838 (I/O Gate Array)
IBM 33F5944 (Memory Controller)
IBM 33F5946 (CPU Gate Array)
IBM 33F8602
IBM 57X4111
IBM 90X8134 (DMA)
Empty
Description:
Overview
Found on the model 70 type 2 motherboard. It supports 20MHz operation. It is much more integrated than the type 1 motherboard. It is also very similar to the late P70 chipset, which is the same except that this chipset includes the 33F8602. It is unclear what function this has. This chipset does not include two Intel 8259-2 (Programmable Interrupt Controllers) or a 8042AH (Keyboard controller), this functionality is likely included in either the 33F5838, 33F5946 CPU Gate Array or 33F5944 Memory Controller. It is currently unknown what is in what chip.
Documented parts
Last updated 2019-04-30T00:00:00Z
![no images available :(](https://theretroweb.com/build/images/missing/chipset-missing.jpg)
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