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HUMMINGBOARD
RADISYS CORPORATION
HUMMINGBOARD
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Processor
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80486SX
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Processor Speed
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Unidentified
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Chip Set
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Pico Power
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Video Chip Set
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Cirrus Logic
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Maximum Onboard Memory
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8MB
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Maximum Video Memory
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512KB
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Cache
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None
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BIOS
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Phoenix
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Dimensions
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Unidentified
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I/O Options
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Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, flat panel connector
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NPU Options
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None
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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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Port power
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C1
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Flat panel connector
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CN5
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PC power
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C2
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IR connector
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CN6
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PS/2 mouse port
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CN1
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Parallel port
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CN7
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VGA port
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CN2
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IDE interface
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CN8
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Serial port 2
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CN3
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Unidentified
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CN9
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Serial port 1
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CN4
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Reset switch
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CN10
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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»
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Phoenix BIOS loaded at startup
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JP3
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Open
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Cyber Quest start up code loaded at startup
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JP3
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Closed
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»
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Flash BIOS normal operation
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JP6
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Open
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Flash BIOS force update
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JP6
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Pins 4 & 6 closed
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»
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Power supply select supplied from mainboard
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JP9
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Pins 1 & 2 closed
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Power supply select supplied from portable battery
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JP9
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Pins 3 & 4 closed
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SIMM CONFIGURATION
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Size
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Bank 0
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4MB
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(1) 1M x 36
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8MB
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(1) 2M x 36
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INTEL FLACH FILE MEMORY CONFIGURATION
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Size
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Bank 1
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1MB
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(1) 1M x 8
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VIDEO MEMORY CONFIGURATION
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Note: 512KB video memory is factory installed and is not configurable.
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CPU CLOCK FREQUENCY SELECTION
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Speed
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JP5/pins 1 & 2
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JP5/pins 3 & 4
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JP5/pins 5 & 6
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4MHz
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Closed
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Closed
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Closed
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8MHz
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Open
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Closed
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Closed
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16MHz
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Closed
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Open
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Closed
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20MHz
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Open
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Open
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Closed
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25MHz
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Closed
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Closed
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Open
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33MHz
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Open
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Closed
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Open
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40MHz
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Closed
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Open
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Open
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50MHz
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Open
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Open
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Open
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CPU VOLTAGE SELECTION
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Voltage
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JP4/pins 3 & 4 (VADJ)
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JP4/pins 1 & 2 (3.3v)
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JP8/pins 3 & 4 (2.4v)
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JP8/pins 1 & 2 (2.7v)
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2.4v
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Open
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Closed
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Open
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Closed
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2.7v
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Closed
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Open
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Closed
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Open
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| »
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3.3v
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Open
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Closed
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N/A
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N/A
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FLAT PANEL SELECTION
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Setting
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JP1/pins 1&2
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JP1/pins 3&4
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JP1/pins 5&6
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| »
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Single Scan Color STN, 16-bit interface/8 color
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Closed
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Closed
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Closed
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Dual Scan STN, monochrome 6.3MHz
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Closed
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Closed
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Open
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Dual Scan color STN, 16-bit interface
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Closed
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Open
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Closed
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Color TFT 9-bit interface
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Closed
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Open
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Open
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Singel Scan Color STN 8-bit interface
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Open
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Closed
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Closed
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Single Scan Monochrome STN, 4-bit interface
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Open
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Closed
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Open
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Color TFT 18-bit interface
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Open
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Open
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Open
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5V VOLTAGE SELECTION
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Setting
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JP7/pins 1 & 2
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JP7/pins 3 & 4
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JP7/pins 5 & 6
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ISA backplane
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Closed
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Open
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Open
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| »
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PC power
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Open
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Closed
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Open
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Portable battery
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Open
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Open
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Closed
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12V VOLTAGE SELECTION
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Setting
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JP11/pins 1 & 2
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JP11/pins 3 & 4
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JP11/pins 5 & 6
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ISA backplane
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Closed
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Open
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Open
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| »
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PC power
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Open
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Closed
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Open
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Portable battery
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Open
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Open
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Closed
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FLASH BOOT SELECTION
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Setting
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JP10
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| »
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Normal operation
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Open
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All boot blocks other than book can be written
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Pins 1 & 3 closed
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16K boot block reprogrammed
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Pins 1 & 3, 2 & 6 closed
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