Technical Information C40-SCFA • CF Card SATA USB Mezzanine Module
P-CF CompactFlash Header
As an option, the C40-SCFA can be provided with a CompactFlash pin header P-CF. It is suitable for
CF cards operated in True IDE Mode (i.e. all popular CF memory cards), which are available up to
16GB as of current. When inserted, the CF card will have to be secured manually by a retainer
assembly, in order to withstand shock and vibration.
The P-CF electrical interface is known as PATA or IDE. A PATA bridge on the C40-SCFA converts the
SATA channel 1 (wich is derived from the ICH southbridge located on the CPU carrier board) to a
legacy IDE port. The pin assignment of P-CF complies to CF Specification 4.1 CompactFlash
Association. The PATA bridge chip supports IDE PIO mode 0 to 4, and UDMA transfer rates up to
150MB/s.
Warning:
The C40-SCFA does not provide a keyed guide rail mechanism for the CF card, hence twisted insertion
(card turned up 180°) is a potential risk. Be sure to insert the CF card with its top side up (typically, a
finger grip is recessed into the bottom side, while the top side of a CF card is evenly flat). Wrong
insertion may cause permanent damage to the CF card and the C40-SCFA mezzanine module.
The CF card retainer assembly is comprised of several parts, which come with the C40-SCFA
mezzanine module. If any element gets lost, spare parts may be obtained from EKF:
EKF Part #
Description
Qty
440.05.020.004
M2x4 cross recess screw
1
440.05.020.008
M2x8 cross recess screw
1
710.9.CFA.7
Base fixing element (PCB mount)
1
710.9.CFA.8
Removable fixing element
1
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