Cirrus Logic EP93xx - Manual (Page 495)

DS785UM1 12-17
Copyright 2007 Cirrus Logic
Static Memory Controller
EP93xx User’s Guide
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PCEN: PC Card Enable - Read/Write
Writing a “1” to this bit enables the PC Card interface.
PCRST: PC Card Reset - Read/Write
Writing a ‘1’ to this bit clears the Configuration Option
register in the card. This places the card into an
unconfigured (memory only interface) state.
Writing a ‘0’ to this bit allows normal PC Card operation.
WEN: External Wait Enable - Read/Write
Writing a ‘1’ to this bit enables the MCWAIT input pin to be
asserted by the card to insert wait cycles into the access
timing.
Writing a ‘0’ to this bit disables the MCWAIT input pin from
being asserted by the card.