NAR-7070 User’s Manual
22
Fig. 3-1 PPAP-3723 Board
3.2 System
Architecture
The following illustration of block diagram will show you how PPAP-3723 gives you a highly
integrated system solution. The most up-to-date system architecture of PPAP-3723 includes two
main VLSI chips. It contains E7501MCH and ICH3 to support Xeon processor, DDR DIMM, PCI
bus interface, USB port, SMBus communication, and Ultra DMA/100 IDE Master. The on-board
super I/O chip Winbond W83627HF supports two UARTs, FDC, parallel port and hardware
monitoring.
PPAP-3723 has built-in Socket 603/604 to support Intel Xeon processor for cost-effective and
high performance application. However.
The E7501 MCH provides a completely integrated solution for the system controller and data
path components in a Xeon processor system. It provides optimized 64-bit DDR RAM interface.
The ICH3 provides a highly integrated multifunction for the best industry applications. It supports
2-channel dedicated Ultra ATA/33/66/100 IDE master interface, Universal Serial Bus
(USB)
controllers and one 64-bit PCI bus interface.
All detailed operating relations are shown in
Fig. 3-2
.(PPAP-3723 System Block Diagram)