THNCF008MAA Datasheet, PDF (6/52 Pages) Toshiba Semiconductor – CompactFlash Card

Preliminary version
THNCFxxxMAA Series
Electrical Interface
Physical Description
The host is connected to the CompactFlash Storage Card or CF+ Card using a standard
50-pin connector. The connector in the host consists of two rows of 25 male contacts each
on 50 mil (1.27 mm) centers.
Pin Assignments and Pin Type
The signal/pin assignments are listed in Table 4. Low active signals have a “-“ prefix. Pin
types are Input, Output or Input/Output. Section 4.3 defines the DC characteristics for all
input and output type structures.
Electrical Description
The CompactFlash Storage Card functions in three basic modes: 1) PC Card ATA using I/O Mode, 2) PC
Card ATA using Memory Mode and 3) True IDE Mode, which is compatible with most disk drives.
CompactFlash Storage Cards are required to support all three modes. The CF Cards normally function in
the first and second modes, however they can optionally function in True IDE mode. The configuration of
the CompactFlash Card will be controlled using the standard PCMCIA configuration registers starting at
address 200h in the Attribute Memory space of the storage card.or for True IDE Mode, pin 9 being
grounded. The configuration of the CF Card will be controlled using configuration registers. The
configuration registers are starting at the address defined in the Configuration Tuple (CISTPL_CONFIG) in
the Attribute Memory space of the CF Card. Signals whose source is the host are designated as inputs
while signals that the CompactFlash Storage Card sources are outputs. The CompactFlash Storage Card
logic levels conform to those specified in the PCMCIA Release 2.1 specification. Each signal has three
possible operating modes:
1) PC Card Memory mode
2) PC Card I/O mode
3) True IDE mode
True IDE mode is required for CompactFlash Storage cards. All outputs from the card are
totem pole except the data bus signals that are bi-directional tri-state.
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