Appendix
EP-6WEA4/4I
A-2
[2F8-2FF]
SERIAL port 2.
[360-36F]
NETWORK ports.
[378-37F]
PARALLEL port 1.
[3B0-3BF]
MONOCHROME & PARALLEL port adapter.
[3C0-3CF]
EGA adapter.
[3D0-3DF]
CGA adapter.
[3F0-3F7]
FLOPPY DISK controller.
[3F8-3FF]
SERIAL port 1.
A-3 TIMER & DMA CHANNELS MAP
TIMER MAP:
TIMER Channel 0
System timer interrupt.
TIMER Channel 1
DRAM REFRESH request.
TIMER Channel 2
SPEAKER tone generator.
DMA CHANNELS:
DMA Channel 0
Available.
DMA Channel 1
Onboard ECP (Option).
DMA Channel 2
FLOPPY DISK (SMC CHIP).
DMA Channel 3
Onboard ECP (default).
DMA Channel 4
Cascade for DMA controller 1.
DMA Channel 5
Available.
DMA Channel 6
Available.
DMA Channel 7
Available
A-4 INTERRUPT MAP
NMI :
Parity check error.
IRQ (H/W):
0
System TIMER interrupt from TIMER 0.
1
KEYBOARD output buffer full.
2
Cascade for IRQ 8-15.
3
SERIAL port 2.
4
SERIAL port 1.
5
PARALLEL port 2.
Содержание EP-6WEA4
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Страница 14: ...Introduction EP 6WEA4 4I Page 1 8 Figure 5 System Block Diagram System Block Diagram ...
Страница 17: ...Installation EP 6WEA4 4I Page 3 1 Section 3 INSTALLATION ...
Страница 18: ...Installation EP 6WEA4 4I Page 3 2 Figure 1 EP 6WEA4 4I Detailed Layout ...
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