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JE1078
JAMECO ELECTRONIC COMPONENTS
JE1078
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Card Type
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Multi I/O card
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Chipset/Controller
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Unidentified
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I/O Options
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Game port, memory, parallel port, serial port
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Maximum DRAM
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384KB
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CONNECTIONS
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Purpose
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Location
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Purpose
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Location
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Serial port
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J1
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Game port
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J3
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Parallel port
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J2
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SERIAL PORT CONFIGURATION
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Port 1 (J1)
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JP2
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COM1
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Pins 2 & 3 closed
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COM2
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Pins 1 & 2 closed
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SERIAL PORT NORMAL/FORCED TRUE CONFIGURATION
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Port 1
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JP4
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| »
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Normal
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Pins 1 & 4, 2 & 5, 3 & 6 closed
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Forced True
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Pins 4 & 7, 5 & 8, 6 & 9 closed
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SERIAL PORT INTERRUPT SELECTION
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Port 1
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JP1
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| »
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IRQ4
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Pins 3 & 4 closed
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IRQ3
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Pins 2 & 4 closed
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PARALLEL PORT CONFIGURATION
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LPT
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IRQ7
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JP1/Pins 13 & 14
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JP2
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| »
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1
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Enabled
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Closed
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Pins 5 & 6 closed
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2
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Disabled
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Open
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Pins 4 & 5 closed
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CLOCK/CALENDAR CONFIGURATION
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Select
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I/O Port Address
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JP2
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| »
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Clock 2
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2C0h - 2DFh
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Pins 7 & 8 closed
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Clock 1
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340h - 35Fh
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Pins 8 & 9 closed
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Disabled
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N/A
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Open
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CLOCK/CALENDAR INTERRUPT SELECTION
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IRQ
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JP1
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4
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Pins 5 & 6 closed
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5
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Pins 7 & 8 closed
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7
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Pins 9 & 10 closed
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2
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Pins 11 & 12 closed
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DRAM CONFIGURATION
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Size
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Bank 0
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Bank 1
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Bank 2
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Bank 3
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Bank 4
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Bank 5
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SW1/4
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SW1/5
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SW1/6
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64KB
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(9) 4164
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None
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None
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None
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None
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None
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Off
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Off
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Off
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128KB
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(9) 4164
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(9) 4164
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None
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None
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None
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None
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Off
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Off
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On
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192KB
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(9) 4164
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(9) 4164
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(9) 4164
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None
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None
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None
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Off
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On
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Off
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256KB
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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None
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None
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On
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Off
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Off
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320KB
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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None
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On
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Off
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On
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384KB
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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(9) 4164
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On
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On
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Off
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STARTING MEMORY ADDRESS CONFIGURATION
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Starting Address
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Max. RAM on JE1078
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SW1/1
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SW1/2
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SW1/3
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0KB (:00000)
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384KB
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Off
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Off
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Off
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64KB (:10000)
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384KB
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Off
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Off
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On
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128KB (:20000)
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384KB
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Off
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On
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Off
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192KB (:30000)
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384KB
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Off
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On
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On
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256KB (:40000)
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384KB
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On
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Off
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Off
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320KB (:50000)
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320KB
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On
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Off
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On
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384KB (:60000)
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256KB
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On
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On
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Off
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448KB (:70000)
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192KB
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On
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On
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On
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PARITY CONFIGURATION
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Setting
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JP3
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| »
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Enabled
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Closed
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Disabled
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Open
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FACTORY CONFIGURED - DO NOT ALTER
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Jumper
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Position
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JP5
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N/A
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