Table of Contents
Advertisement
MCU/ARM
NOTES
1.
Transistor circuit solution is not suitable for applications with high baud rates exceeding 460Kbps.
"*" means under development.
2.
3.11. SD Card Interface*
The following table shows UC200T-EM pin definition of SD card interface.
Table 14: Pin Definition of SD Card Interface
Pin Name
Pin No.
SDC2_DATA3*
28
SDC2_DATA2*
29
SDC2_DATA1*
30
SDC2_DATA0*
31
SDC2_CLK*
32
SDC2_CMD*
33
UC200T-EM_Hardware_Design
VDD_EXT
TXD
RXD
10K
VCC_MCU
RTS
CTS
GPIO
EINT
GPIO
GND
Figure 14: Reference Circuit with Transistor Circuit
I/O
Description
IO
SD card SDIO bus DATA3
IO
SD card SDIO bus DATA2
IO
SD card SDIO bus DATA1
IO
SD card SDIO bus DATA0
DO
SD card SDIO bus clock
IO
SD card SDIO bus command
4.7K
VDD_EXT
1nF
10K
1nF
VDD_EXT
4.7K
UMTS/HSPA(+) Module Series
UC200T-EM Hardware Design
Module
RXD
TXD
RTS
CTS
DTR
RI
DCD
GND
Comment
1.8V/2.8V power domain.
If unused, keep it open.
1.8V/2.8V power domain.
If unused, keep it open.
1.8V/2.8V power domain.
If unused, keep it open.
1.8V/2.8V power domain.
If unused, keep it open.
1.8V/2.8V power domain.
If unused, keep it open.
1.8V/2.8V power domain.
34 / 68
Advertisement
Table of Contents
Need help?
Do you have a question about the UC200T-EM and is the answer not in the manual?
Questions and answers