Compaq SmartCore Express SMA200 - Manual (Page 33)

DIGITAL-LOGIC AG SMA200 Manual V1.0
33
5.4.9. SD / SDIO Interface
Signal BUS Type Description
On Module
Termination Ext. Ter-
mination
Needed Max.
Length
in mm
Ohm
Matched
Length
in mm
SD0_CD# CMOS 3.3V
Out
Connect to an SDIO
device or card. PU 10k to
3.3V - 100 55 -
SD0_CLK CMOS 3.3V
Out
Connects to the pin of
the SD/SDIO device or
card. Series 47
Ohm Series
49 Ohm 100 55
SD0_CMD# CMOS 3.3V
I/O
Connects to the pin of
the SD/SDIO device or
card. PU 10k to
3.3V
Series 47 100 55
SD_Data [3..0] CMOS 3.3V Connects to the pin of
the SD/SDIO device or
card. Series
49 Ohm 100 55
SD0_LED CMOS 3.3V
Out
Optional.
SD0_PWR# CMOS Out Connect to the power
pin on the SD/SDIO
device or card, voltage
translation
might be
required.
SD0_WP CMOS In Connects to the pin of
the SD/SDIO device or
card. PU 10k
to 3.3V
If the signals are not used:
Remarks:
EMV/EMI filters:
Are not needed.