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1
Introduction
Welcome to the WAFER-7850 Pentium® III, Celeron Single
Board Computer. The WAFER-7850 board is a big 4 pin 3.5
inches form factor board, which comes equipped with high
performance Pentium® III, or economical Celeron Processor
with
the Intel advanced chipset 815E. This product is designed for
the system manufacturers, integrators, or VARs that want to
provide all the performance, reliability, and quality at a
reasonable price.
In addition, the WAFER-7850 provides on chip VGA. The VGA
which provides up to 1600x1200 resolution. The VGA memory is
share main memory.
An advanced high performance super AT I/O chip – ITE IT8702
is used in the WAFER-7850 board. Both on-chip UARTs are
compatible with the NS16C550. The parallel port and IDE
interface are compatible with IBM PC/AT architecture's.
WAFER-7850 uses Intel 82801BA embedded LAN controller,
which is a fully integrated 10BASE-T/100BASE-TX LAN solution
with high performance networking functions and Alert-on-Lan
features.
WAFER-7850 uses the advanced INTEL Chipset,815E
which is provided up to 133MHz for FSB and 133MHz for
SDRAM memory.
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1.1 Specifications:
•CPU : Celeron® Processor, 300MHz and above
Pentium® III(FC-PGA) Processor, 450MHz and above
•DMA channels : 7
•Interrupt levels : 15
•Chipset : Intel 815E
•RAM memory : Single 144 pin SODIMM socket . The memory
capability is up to 256MB/133MHz.
•Ultra ATA/33/66/100 IDE Interface : Single PCI Enhance IDE
channel. The south bridge ICH2 supports Ultra ATA/33/66/100 IDE
interface. To support Ultra ATA66/100 Hard disk, a specified cable
must be available.
•Floppy disk drive interface : Single 2.88 MB, 1.44MB, 1.2MB,
720KB, or 360KB floppy disk drive.
•CompactFlash Card Storage Card interface : Supports Type II
CompactFlash and IBM Micro Drive.
•Two high speed Series ports : 16C550 compatible UARTs
•Bi-directional Parallel Port IEEE1284 compatible
•IrDA port : Supports Serial Infrared(SIR) and Amplitude Shift
Keyed IR(ASKIR) interface.
•USB port : Support single USB port for future expansion. USB 1.0
compatible.
•AC97Codec : Supports two channel Left/Right Line IN/OUT, and
Left/Right speaker out, MIC IN, CD IN.
•Watchdog timer : Time resolution 1 second or 1 minute, maximum
255 unit. Reset was generated when CPU did not periodically trigger
the timer.
•VGA Controller : Embedded VGA controller, Screen Resolution :
up to 1600x1200 in 256 Colors at 85Hz Refresh.
•Intel 82801BA embedded Lan Controller : IEEE 802.3u Auto-
Negotiation support for 10BASE-T/100BASE-TX standard. Fast
back-to-back transmission support with minimum interframe spacing.
Connected to your LAN through RJ45 connector.