IBM JS20 Server User Manual


 
Major components of the expansion card
The following illustration shows the components on the top of the expansion
card.
Note: The illustrations in this document might differ slightly from your
hardware.
ISP2312 chip (U5)
ISP2312 chip (U5): The ISP2312 chip provides a PCI-X local bus interface and
two completely independent 2 Gb serial Fibre Channel ports. Each port has a
RISC processor, an integrated serializer/deserializer (SERDES), a receive DMA
sequencer, frame buffer, five-channel DMA controller, and an external memory
interface in a single-chip solution.
Figure 1. Expansion card (top)
Chapter 1. Introduction 7