Non-Transparent PCI-to-PCI Bridge 304Pin BGA
’s 21555 is a PCI peripheral device that performs PCI bridging functions for embedded and intelligent I/O applications. The 21555 has a 64-bit primary interface, a 64-bit secondary interface, and 66-MHz capability. The 21554 a related PCI peripheral device, has a 64-bit primary interface, a 64-bit secondary interface, and 33-MHz capability.”
罗切斯特:
PCI BRIDGE CHIP
Win Source:
21555AA/BA and 21555AB/BB Differences