EQUITY I+
Jumper Locations
Jumper Settings for FDC, RAM, and EPROM Configuration
I:““:’Fu 3 n , c t i o n
lA
BFDC disabled
AParity RAM disabled
BParity RAM enabled
A 64KB/128KB EPROM selected
B 256KB EPROM selected
Parity RAM lnstallation
The Equity I+ supports parity RAM checking to insure that the data stored in memory is valid. To install this option, insert two 50256 or 51256 chips in sockets 6M and 7M; and 4164 chips in sockets 6N and 7N. Then set jumper J2 as shown in the table above.
DMA Channels
ChannelFunction
0Refresh
1Spare
2FDD Adapter
3HDD Adapter
Hardware Interrupts
Number | Function |
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IRQO | Timer |
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IRQl | Keyboard |
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IRQ2 | EGA, PC Net, 3278179 |
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IRQ3 | Serial | 2 |
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IRQ4 | Serial 1 |
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IRQ5 | Hard Disk | 1 | |||
IRQ6 | Floppy | Disk | |||
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IRQ7 | Printer |
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Equity Series Computers | 12/12/88 | EQI+ |