Mmc/Sd Card Interface - SimCom SIM5218E Hardware Design

SIM5218E Hardware Design
Table 26: PIN define of sensor interface
Pin Name
14 CAM_D0
55 CAM_D1
15 CAM_D2
54 CAM_D3
16 CAM_D4
53 CAM_D5
17 CAM_D6
52 CAM_D7
18 CAM_D8
51 CAM_D9
19 CAM_HSYNC
50 CAM_VSYNC
21 CAM_CLK
49 CAM_PCLK
48 CAM_RESET
47 IIC_SDA
46 IIC_SCL
20 GND
22 CAM_STANDBY
*Note：Camera module interface function is just supported by SIM5218E software.
We have tested several kinds of digital sensors, such as OV2640, OV7670，OV7725 and a
NTSC/PAL digital video decoder named AK8856(decodes NTSC or PAL composite video signals
into digital video data which means with this decoder you can use analog sensor as video source) .
Software must be adjusted when use other kinds of sensors. Custom can contact us and give us
your request. The power supply of the sensor should be supplied by custom.

3.17 MMC/SD card interface

SIM5218E provides one MMC/SD card interface. The SIM5218E acts as a HOST. The SIM5218E
device has a 4-bit SD interface. It supports 4 bits of data and a command signal. In addition, a
clock output is provided by the SIM5218E to be used as SD_CLK, or MMC_CLK. This clock is
designed to be used with the MMC/SD interface and is what customers should use with the
MMC/SD cards. A LDO power output is provided by the SIM5218E for the power supply of
MMC/SD card, it is PIN 40, name VREG_AUX1. This LDO default output voltage is 2.85V, and
driver current is rated for 150mA. Meanwhile data lines can be pulled up by VREG_AUX1.
The following features are implemented:
SIM5218E_HD_V1.03
Function
Bit 0 of RGB video component output
Bit 1 of RGB video component output
Bit 2 of RGB or YUV D0 video component output
Bit 3 of RGB or YUV D1 video component output
Bit 4 of RGB or YUV D2 video component output
Bit 5 of RGB or YUV D3 video component output
Bit 6 of RGB or YUV D4 video component output
Bit 7 of RGB or YUV D5 video component output
Bit 8 of RGB or YUV D6 video component output
Bit 9 of RGB or YUV D7 video component output
Video horizontal line synchronization signal
Vertical sync output
master clock input
Pixel clock output
Master reset input, active low
Serial interface data input and output
Serial interface clock input
Ground
Power-down mode selection
"1"=Normal mode, "0"=Power-down mode
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Lever
11.06.2009