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FDC37C651QFP Super IO controller (Floppy, IDE controller, parallel printer port and 2x serial ports)
2 resonators:
14.31818 MHz which is not resonating despite pin1 being +5V. This one seems dead. Datasheet:
View file name ECLCS91063-1.pdf 24.0000 MHz which resonates just fine.
VL82C486: a single chip 486 controller chip which contains most logic needed for a 486 level PC:
2 82C37A DMA controllers
2 82C59A Interrupt controllers
82C54 Timer
82284 Clock generator and ready interface
82288 Bus controller
Memory refresh controller
Port B and NMI logic
Bus steering logic
Turbo Mode control logic
Parity check and generation logic
Datasheet here:
View file name VL82C486.pdf
VL82C113A: SCAMP Combination I/O
146818A compatible real time clock
64 bytes of battery-backed CMOS RAM
AT compatible keyboard controller and PS/2 mouse
SCAMP compatible processor to ISA bus address latches and buffers
Datasheet here:
View file name VL82C113A.pdf
AV9155-01CW20 Frequency Generator
Generates clocks for 486 systems from a 14.318MHz crystal - bingo, this thing provides clocks for the CPU, sigh.
This is the 01 variant for 16MHz BUS
Datasheet here:
View file name AV9155-02M20.pdf
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