Epson Endeavor Product Information Guide - Page 5

DMA Assignments, Hardware Interrupts

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VGA Feature Connector (CN8) VGA Feature Connector Pin Assignments EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 System I/O Address Map 'Active low logic DMA Assignments Level DMA0 DMA1 DMA2 DMA3 DMA5 DMA6 DMA7 Assigned device Spare (&bit) Spare (&bit) FDD controller (&bit) Spare (8-bit) Spare (16-bit) Spare (16-bit) Spare (16-bit) Hardware Interrupts IRQ no. IRQ0 IRQ1 IRQ3 IRQ4 IRQ5 IRQ6 Function Timer output Keyboard Serial port 2 Serial port 1 Available (parallel port 2) FDD controller 4/1/93 EPSON Endeavor-5

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EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50
VGA Feature Connector (CN8)
System I/O Address Map
VGA Feature Connector Pin Assignments
‘Active low logic
DMA Assignments
Level
Assigned device
DMA0
Spare (&bit)
DMA1
Spare (&bit)
DMA2
FDD controller (&bit)
DMA3
Spare (8-bit)
DMA5
Spare (16-bit)
DMA6
Spare (16-bit)
DMA7
Spare (16-bit)
Hardware Interrupts
IRQ no.
IRQ0
IRQ1
IRQ3
Function
Timer output
Keyboard
Serial port 2
IRQ4
IRQ5
IRQ6
Serial port 1
Available (parallel port 2)
FDD controller
4/1/93
EPSON Endeavor-5