EMIF06-MSD02N16

Application information

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Figure 8.

Mechanical card detection

A pull-up of 90 k

Ω is embedded into the EMIF06-MSD02N16. The routing corresponding to

the mechanical card detection configuration is shown in Figure 9.

Figure 9.

Circuit routing for mechanical card detection

In case of electrical card detection, the user must add a pull-down on the circuit connected

to the CD/DAT3 pin of the micro-SD/T-Flash pin as shown in Figure 10.

Figure 10.

Electrical card detection

Contact when

inserting

the card

SD card

Pull - up

resistor

V

DD

GND

WP/CD

GND

Host

controller

Card detect pin

Card detect host input

Pin 1–DAT2

Pin 2–CD/DAT3

Pin 3 –CMD

Pin 5 –CLK

Pin 6–GND

Pin 7–DAT0

Pin 8–DAT1

Card detect pull-up

Top level

DAT3 pull-up

Pin 4 –VCC

NC

Card detect pull-up

Top level

DAT3 pull-up

Card detect pin

Card detect host input

Pin 1

–

DAT2

Pin 2

–

CD/DAT3

Pin 3

–

CMD

Pin 5

–

CLK

Pin 6

–

GND

Pin 7

–

DAT0

Pin 8

–

DAT1

Pin 4

–

VCC

NC

Bottom view

Top view

SD card

DAT3 (CD)

50 k

Ω

0

GND

Host

controller

Pull - down

resistor

V

DD