DP-CL18
3.6.12. PCI Bus
IC23 (DP83816) that is the 10/100 Mbps Ethernet controller is connected with ASIC2 (IC24) using the PCI bus conforms the
32bit/33 MHz 3.3V PCI Ver2.2 standards. The PCI bus clock is 33 MHz. ASIC2 and DP83816 operates while synchronizing with
the clocks (PCICLKIN, PCICLK: 33 MHz) from ASIC2. The ethernet controller IC23 (DP83816) receives the data from the host PC
trough the network and sends the received data to ASIC2 using the PCI bus. ASIC2 sends this received data to the main memory
(SO-DIMM) through ASIC1 (IC15). When transferring the data in the SO-DIMM to the host PC, the reverse order is done.
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