The PCI Host controller offers a PCI 32-bit bus operating at 33MHz and supports PCI devices conforming to the PCI Local Bus Specification 2.1. PCI Host Bridge contains an internal arbiter to manage up to 4 external devices
PCI v2.1 Host Controller
Overview
Block Diagram

Technical Specifications
GLOBALFOUNDRIES
Pre-Silicon:
40nm
LP
TSMC
Silicon Proven:
28nm
HPC