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Moxa EM-1220-LX [14/19] Definition of sd signals
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Product Name EM-1220 Functionality
2-4
Definition of SD Signals
The following table gives the definition of the SD signals. Note that the signal pins from the J2 pin header share
the same pin as the GPIO.
Signal Name Direction GPIO Description
SD_CLK Output GPIO 7 Clock signal to SD/MMC
SD_CMD Bidirectional GPIO 2 Bidirectional line for command and response
SD_DAT<3:0> Bidirectional GPIO <6:3> Bidirectional line for read and write data
SD_CD Input GPIO 1 Card detect
SD_WP Input GPIO 0 Write protect
Mechanical Specifications of the Pin Headers
Refer to the following figures for the mechanical specifications of the Pin Headers on the EM-1220 Embedded
Module. The figures define the mechanical specifications of jumpers J1 and J2 on the EM-1220.
Содержание
- Em 1220 hardware user s manual 1
- Fourth edition february 2011 1
- Www moxa com product 1
- Copyright notice 2
- Disclaimer 2
- Em 1220 hardware user s manual 2
- Technical support contact information 2
- Trademarks 2
- Www moxa com support 2
- Table of contents 3
- Introduction 4
- Overview 5
- Package checklist 5
- Product features 5
- Product name introduction 5
- Computer 6
- Em 1220 hardware specifications 6
- Environmental limits 6
- Ethernet interface 6
- Physical characteristics 6
- Power requirements 6
- Product name introduction 6
- Serial communication parameters 6
- Serial interface 6
- Serial signals 6
- Standards and certifications 6
- Storage 6
- Em 1220 hardware block diagram 7
- Product name introduction 7
- Reliability 7
- Warranty 7
- Appearance 8
- Product name introduction 8
- Dimensions 9
- Product name introduction 9
- Product name introduction 10
- Em 1220 functionality 11
- Console port 12
- Em 1220 embedded module functions 12
- Lan ports 12
- Pin assignments 12
- Product name em 1220 functionality 12
- Rs 232 422 485 serial ports 12
- Sd signals 12
- Product name em 1220 functionality 13
- Definition of sd signals 14
- Mechanical specifications of the pin headers 14
- Product name em 1220 functionality 14
- Em 1220 dk functionality 15
- Combining the em 1220 dk with the embedded module 16
- Em 1220 dk development board 16
- Led indicators 16
- Product name em 1220 dk functionality 16
- Wiring requirements 16
- Attention 17
- Connecting the power 17
- Grounding the em 1220 development kit 17
- Product name em 1220 dk functionality 17
- Serial ports and pin assignments 17
- Console ports and pin assignments 18
- Lan ports and pin assignments 18
- Product name em 1220 dk functionality 18
- Product name em 1220 dk functionality 19
- Reset button 19
- Sd socket 19
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