Bplus SDEX - Manual (Page 2)

SD Extender Board 1.0_User’s Manual
Page 1
FAE2009SDEX_01 ©2009 Bplus Technology
1.0 Introduction
Aeneas Electronics’ SD Extender board 1.0 is a debug and signal detection
tool for Secure Digital Memory Card.
The SD extender 1.0 is designed to minimize the signal degradation effects of
the extender by proven design techniques. Separate Vcc and GND plane
provide a low inductance path to the host’s power supply.
The SD extender has the function of over-current protection with PTC fuse. A
clearly marked jumper header allows probing of all signal pins. It’s also a
powerful tool for engineers, or use for factory test protection.
z Test connector for all of signal and power pins
z Any signal can be isolated with jumper block
z Power and ground can be isolated for power measurements
z LED indicates power status
z Adds dumping resisters for all of signals
z Vcc bypassed for clean power
z Supports both Secure Digital Memory Cards and MMC cards
z High quality connectors for long service life
z Over-current protection with PTC fuse
z Passive adapter unnecessary
z Supports Card Type: MMC & Micro MMC & MMC plus & MMC mobile &
RS-MMC & SD & Micro SD & Mini SD & SD HC
2.0 Using the SD Extend
The SD Extender Board 1.0 allows a Secure Digital Memory Card to be
extended from the host slot for full access to the all of signal pins.
Signals may be examined with an oscilloscope or analyzer via a test header.
Figure-1 SD Extender Board 1.0(heads)