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Open
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ical su
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Also known as E
2
PROM. Both EEPROM and
Flash ROM
can be re-programmed by electronic
signals, but the interface technology is different. Size of EEPROM is much smaller than flash ROM,
AOpen motherboard uses EEPROM for jumper-less and battery-less design.
E
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Traditional motherboard stores BIOS code in EPROM. EPROM can only be erased by ultra-violet
(UV) light. If BIOS has to be upgraded, you need to remove EPROM from motherboard, clear by
UV light, re-program, and then insert back.
E
E
V
V
6
6
B
B
u
u
s
s
EV6 Bus in the technology of Alpha processor from Digital Equipment Corporation. EV6 bus uses
both rising and falling clock edge to transfer data, similar as DDR SDRAM or ATA/66 IDE bus.
EV6 Bus Speed = CPU external bus clock x 2.
For example, 200 MHz EV6 bus is actually using 100 MHz external bus clock, but the equivalent
speed is 200 MHz.
