smc128cf Numonyx, smc128cf Datasheet - Page 5

• Manufacturer Part Number: smc128cf
• Description: 128-mbyte, 1-gbyte, 8-gbyte, 3.3/5 V Supply, Compactflash? Card
• Manufacturer: Numonyx

SMC128CF, SMC01GCF, SMC08GCF
1
Description
The CompactFlash is a small form factor non-volatile memory card which provides high
capacity data storage. Its aim is to capture, retain and transport data, audio and images,
facilitating the transfer of all types of digital information between a large variety of digital
systems.
The card operates in three basic modes:
The CompactFlash also supports advanced timing modes. Advanced timing modes are
PCMCIA style I/O modes that are 100 ns or faster, PCMCIA memory modes that are 100 ns
or faster, true IDE PIO up to mode 6, multi-word DMA up to mode 4, and UDMA up to mode
4.
It conforms to the PC card specification when operating in the PCMCIA I/O mode, and in the
PCMCIA memory mode (personal computer memory card international association
standard, JEIDA in Japan), and to the ATA specification when operating in true IDE mode.
CompactFlash cards can be used with passive adapters in a PC-card type II or type III
socket.
The card has an internal intelligent controller which manages interface protocols, data
storage and retrieval as well as hardware RS-code error correction code (ECC), defect
handling, diagnostics and clock control. Once the card has been configured by the host, it
behaves as a standard ATA (IDE) disk drive. The hardware RS-code ECC allows to detect
and correct 4 bytes per 512 bytes.
The specification has been realized and approved by the CompactFlash association (CFA).
This non-proprietary specification enables users to develop CF products that function
correctly and are compatible with future CF design.
The system highlights are shown in
Related documentation
PCMCIA I/O mode
PCMCIA memory mode
True IDE mode
PCMCIA PC card standard, 1995
PCMCIA PC card ATA specification, 1995
AT attachment interface document, american national standards institute, X3.221-1994
CF+ and CompactFlash specification revision 3.0.
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Description
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