Samsung S3C6400X User Manual page 188

S3C6400X RISC MICROPROCESSOR
9
CF CONTROLLER
This chapter describes the functions and usage of CF Controller in S3C6400X RISC microprocessor.
OVERVIEW
CF controller supports both PC card memory/IO mode & True-IDE mode.
CF controller is compatible with CF standard spec. R3.0.
FEATURES
The CF controller features:
The CF controller supports only 1 slot.
The CF controller consists of 2 parts – PC card controller & ATAPI controller. They are multiplexing from or to
PAD signals. You must use only 1 mode, PC card or True-IDE mode. Default mode is PC card mode. The CF
controller has a top level SFR that includes card power enable bit, output port enable bit & mode select (True-IDE
or PC card) bit.
The PC card controller features:
The PC card controller has 2 half-word (16bits) write buffers & 4 half-word (16bits) read buffers.
The PC card controller has 5 word-sized (32bits) Special Function Registers:
3 timing configuration registers. (Attribute memory, Common memory, I/O interface)
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1 status & control configuration register
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1 interrupt source & mask register
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Timing configuration register consists of 3 parts – Setup, Command & Hold.
PC card interface includes 4 state (IDLE, SETUP, COMMAND & HOLD)
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Each part of register indicates the operation timing of each state.
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Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
CF CONTROLLER
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