Introduction
3303788
User’s Manual
1-6
1-3 System Architecture
The following illustration of block diagram will show you how
3303788
gives you
a highly integrated system solution. The most up-to-date system architecture of
3303788
, includes two main VLSI chips , 82443BX Host Bridge and 82371EB
PIIX4E, to support Celeron processor, SDRAM with ECC, PCI bus interface, ACPI
compliant power management (option), USB port, SMBus communication, and Ultra
DMA/33 IDE Bus Master. The on-board super I/O chip , W83977ATF, will support
PS/2 Keyboard/Mouse, two UARTs, FDC, Parallel and Infrared interface. Besides,
an on-board PCI device VGA/panel display will provide user more flexibility and
reliability in a highly integrated application.
3303788
built-in Socket 370 to support Intel Celeron processor Plastic Pin Grid
Array
(PPGA)
package and Pentium-III FC-PGA Coppermine processor for high
performance and cost-effective application. The Intel Celeron processor is the next
addition to the P6 micro architecture processor product lines. The Intel Celeron
processor, like the Intel Pentium Pro and Intel Pentium II processor, features a
Dynamic Execution microarchitecture and also executes MMX technology
instructions for enhanced media and communication performance. However, the FC-
PGA Coppermine-256 ( Pentium III ) processor provides twice of the Celeron L2
Ca
c
he.
The North Bridge 82443BX provides a completely integrated solution for the system
controller and data path components in a Celeron processor system. It provides a 64-
bit GTL+ based host bus interface, optimized 64-bit DRAM interface with ECC to
support two 3.3V DIMMs at the maximum bus frequency of 100 MHz, and 32-bit
PCI bus interface to support on-board PCI device.
The South Bridge, 82371EB PCI ISA IDE Xcelerator (PIIX4E), provides a highly
integrated multifunction PCI-to-ISA bridge solution for the best industry application.
It supports 1-channel dedicated Ultra DMA-33 IDE master interface, full Plug-and-
Play compatibility, and Advanced Programmable Interrupt Controller
(APIC)
interface on
3303788
. It also supports 2-port Universal Serial Bus
(USB)
and PCI
2.1 Compliance operation. In addition, it also provides XD-bus via buffer logic
control to support BIOS read/write access and external Real-time Clock
(RTC)
to
maintain date and time of a system.
The Super I/O chip W83977ATF, which integrates two high-speed serial ports, one
parallel port, FIR/SIR interface, 8042 keyboard controller with PS/2 mouse ports and
FDD interface. This parallel port supports one PC-compatible printer port (SPP),
Enhanced Parallel Port
(EPP)
and Extended Capabilities Port
(ECP)
.
