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phyCORE-Z500P(T)
11.22 Secure Digital / Multi-Media Card (X31/X32)
Two Security Digital interfaces are available on the bottom side of the phyCORE-Z500P(T) baseboard
at X31 and X32.Table 28 provides a detailed list of the signals found at X31 and X32.
Both connectors are powered via power switch U6, which is used to power On/Off the sockets by the
#MMC1/2_PWR signal or by inserting a SD/MMC card. The maximum current per port is limited to
500 mA.
Pin
Signal
1
MMC1_DATA3
2
MMC1_CMD
3
GND
4
VCC3V3S
5
MMC1_CLK
6
GND
7
MMC1_DATA0
8
MMC1_DATA1
9
MMC1_DATA2
10
#MMC1_CD
11
GND
12
MMC1_WP
Table 28:
Secure Digital / Multi-Media-Card X31
Pin
Signal
1
MMC2_DATA3
2
MMC2_CMD
3
GND
4
VCC3V3S
5
MMC2_CLK
6
GND
7
MMC2_DATA0
8
MMC2_DATA1
9
MMC2_DATA2
10
#MMC2_CD
11
GND
12
MMC2_WP
Table 29:
Secure Digital / Multi-Media-Card X32
74
Description
On board
Dataline 3
Command
PU10k
Ground
Power
Clock
PU10k
Power
Dataline 0
Dataline 1
Dataline 2
Card detect
Ground
Write-Protect
PU10k
Description
On board
Dataline 3
Command
PU10k
Ground
Power
Clock
PU10k
Power
Dataline 0
Dataline 1
Dataline 2
Card detect
Ground
Write-Protect
PU10k
© PHYTEC Messtechnik GmbH 2009
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