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Epson EL 4S/33+
Drive Option Information
Standard diskette drive specifications
DMA Assignments
Level
DMA0
DMA1
DMA3
DMA6
DMA7
Assigned device
Reserved (8-bit)
Reserved (8-bit)
FDD controller (8-bit)
Reserved
(8-bit)
Cascade for DMA controller 1
Reserved (16-bit)
Reserved (16-bit)
Reserved (16-bit)
Hardware Interrupts
IRQ no.
Function
lRQ0
Timer output
IRQ1
Keyboard
IRQ2 Cascade from IRQ controller 2
IRQ3
Serial port 2
IRQ4
Serial port 1
IRQ5 Parallel port 2
IRQ6 FDD controller
Epson EL 4-S/33+ - 6
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