Technical data

Overview
1-6
ISA Bus Devices
The ISA bus interface is provided by the PicoPower V3 chip.
Audio
Audio support is provided by the ES1878 chip. This chip
provides the following functions:
• Monophonic full-duplex operation using two DMA
channels.
• I
2
S interface to internal stereo D/A for external Zoomed
Video port.
• Complete general interrupt mapping including the
sharing of all interrupts.
• Support for 16-bit Stereo, FM Synthesizer, MPU-401,
and MIDI.
• Self-timed joystick port.
• Hot docking 6-pin interface to expansion audio mixer
(ES978).
BIOS
The system BIOS is implemented using the Intel 28F002BX-T
2 MB Boot block Flash ROM.