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XINET LS3251
XINETRON, INC.
XINET LS3251
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Processor
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80386DX
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Processor Speed
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25MHz
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Chip Set
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C & T
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Max. Onboard DRAM
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16MB
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SRAM Cache
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None
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BIOS
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Award
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Dimensions
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355mm x 304mm
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I/O Options
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AUI network interface, BNC network interface, floppy drive interface, IDE interface, parallel port, serial ports (2), game port
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NPU Options
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80387DX
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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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AUI ethernet interface
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C1
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Game port
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C6
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BNC ethernet interface
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C2
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Floppy drive interface
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C7
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Parallel port
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C3
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IDE interface
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C8
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Serial port (COM2)
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C4
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Reset switch
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JP7
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Serial port (COM1)
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C5
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USER CONFIGURABLE SETTINGS
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Function
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Jumper
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Position
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Monitor type select monochrome
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JP2
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pins 2 & 3 closed
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Monitor type select color
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JP2
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pins 1 & 2 closed
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CPU speed select from keyboard
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JP13
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pins 1 & 2 closed
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CPU speed select fast
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JP13
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pins 2 & 3 closed
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Floppy drive interface enabled
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JP306
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pins 2 & 3 closed
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Floppy drive interface disabled
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JP306
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pins 1 & 2 closed
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IDE interface enabled
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J312 & J313
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pins 2 & 3 closed
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IDE interface disabled
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J312 & J313
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pins 1 & 2 closed
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Pipeline mode enabled
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JP12
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pins 1 & 2 closed
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Pipeline mode disabled
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JP12
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pins 2 & 3 closed
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SERIAL PORT CONFIGURATION
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COM1 (C5)
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COM2 (C4)
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JP303
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JP304
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JP305
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Enabled
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Enabled
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pins 2 & 3 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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Enabled
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Disabled
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pins 2 & 3 closed
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pins 1 & 2 closed
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pins 2 & 3 closed
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Disabled
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Enabled
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pins 1 & 2 closed
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pins 2 & 3 closed
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pins 2 & 3 closed
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Disabled
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Disabled
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pins 1 & 2 closed
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pins 1 & 2 closed
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pins 1 & 2 closed
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PARALLEL PORT (C3) CONFIGURATION
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LPT
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I/O Address
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JP301
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JP302
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LPT 1
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3BCh
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pins 1 & 2 closed
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pins 2 & 3 closed
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LPT 2
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378h
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pins 2 & 3 closed
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pins 2 & 3 closed
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LPT 3
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278h
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pins 2 & 3 closed
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pins 1 & 2 closed
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Disabled
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N/A
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pins 1 & 2 closed
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pins 1 & 2 closed
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ETHERNET CABLE TYPE CONFIGURATION
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Cable Type
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JP102
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J161-J166
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BNC
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Closed
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pins 1 & 2 closed
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AUI transceiver via 9-pin
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Open
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pins 2 & 3 closed
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ETHERNET INTERRUPT REQUEST CONFIGURATION
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Channel
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J111
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J112
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J113
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J114
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IRQ 3
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Open
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Closed
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Open
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Open
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IRQ 2
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Closed
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Open
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Open
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Open
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IRQ 4
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Open
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Open
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Closed
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Open
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IRQ 5
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Open
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Open
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Open
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Closed
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ETHERNET I/O BASE ADDRESS CONFIGURATION
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Address
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J121
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J122
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J123
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J124
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320h
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Open
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Closed
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Open
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Open
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300h
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Closed
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Open
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Open
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Open
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340h
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Open
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Open
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Closed
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Open
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360h
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Open
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Open
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Open
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Closed
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ETHERNET BOOT ROM MEMORY ADDRESS CONFIGURATION
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Address
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J131
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J132
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J133
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CC000h
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Open
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Closed
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Open
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C8000h
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Closed
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Open
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Open
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D0000h
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Open
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Open
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Closed
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NPU CONFIGURATION
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Mode
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JP4
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JP11
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Disabled
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pins 2 & 3 closed
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pins 2 & 3 closed
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Asynchronous
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pins 1 & 2 closed
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pins 2 & 3 closed
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Synchronous
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pins 1 & 2 closed
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pins 1 & 2 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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JP20
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1MB
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(4) 256K x 9
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NONE
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NONE
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NONE
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N/A
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2MB
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(4) 256K x 9
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(4) 256K x 9
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NONE
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NONE
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N/A
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4MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 256K x 9
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(4) 256K x 9
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pins 1 & 2 closed
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4MB
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(4) 1M x 9
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NONE
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NONE
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NONE
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N/A
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8MB
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(4) 1M x 9
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(4) 1M x 9
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NONE
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NONE
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N/A
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10MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 256K x 9
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(4) 256K x 9
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pins 1 & 2 closed
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10MB
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(4) 256K x 9
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(4) 256K x 9
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(4) 1M x 9
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(4) 1M x 9
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pins 2 & 3 closed
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16MB
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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(4) 1M x 9
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pins 2 & 3 closed
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