ispLSI 2064E TQFP内部的PCMCIA接口PCMCIA Interface in an ispLSI 2064E TQFP Introduction The Personal Computer Memory Card International Association (PCMCIA) has developed standards for personal computer cards (PC cards) which are often referred to as PCMCIA cards. PC cards represent a key technology for adding memory, storage and I/O capabilities to portable systems. This application note provides an overview of the PC card interface and describes the in-system programmable (ISP) Lattice ispLSI 2064E implementation in a single, space-saving TQFP (thin quad flat pack) package. PC Card Standard The PCMCIA Electrical Specification describes the connector pinout, interface protocol, signaling environment, interface timing, programming model and specifics of card insertion, removal, power up and configuration. It specifies bo……