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6.4
SD/MMC interface
This paragraph describes the card reader JEDED/MMC standard version 5.0 compliant.
The filter used is EMIF06-MSD02N16 by ST.
The SD/MMC card reader needs to use a power switch to limit the output current to a safe level in case the output
load exceeds the current limits threshold or a short is present.
Use a STMPS2151MTR by ST.
The figure below shows SD/MMC card reader diagram.
Figure 7.
SD/MMC card reader diagram
The following table describes all hardware of the SD/MMC interface of the mini module and their position on PCB.
Table 12.
SD/MMC interface
Symbol
Description
Position
U16
CMOS switch
Figure 9. Overview of SPC58NHADPT176S Rev. A mini module - Bottom
- A2
U17
Filter EMI 6-line Micro
Figure 9. Overview of SPC58NHADPT176S Rev. A mini module - Bottom
- B2
U18
Connector SD reverse push-push
Figure 8. Overview of SPC58NHADPT176S Rev. A mini module - Top
- D1/D2
UM2731
SD/MMC interface
UM2731
-
Rev 1
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