Product Specs

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Subject: Doc. No.: Rev: 2
UMC-STD31LF Product Specification Page 6 of 54
本資料為啟碁科技股份有限公司專有之財產，非經書面許可，不准透露或使用本資料，亦不准複印，複製或轉變成其他形式使用。
The information contained herein is the exclusive property of WNC and shall not be distributed, reproduced, or disclosed in whole or in part without prior written permission from WNC.
Form No.: 2-JT-00022-03_001
UMC-STD31LF Product Specification
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1.3 Interface
1.3.1 Signal interface
UMC-STD31LF has signal interfaces as showed as below table. Developer could use these interfaces to
communicate with NAD or debugging
Interface
Amount
Description
PCIE
1 set
MT2731R:RC mode/MT2731P: EP mode
USB 2.0 OTG
1 set
support the device or the host mode
RGMII
1 set
Support GbE
Audio(analog)
2 sets
for the analog audio interface; consisting of two audio DACs with Mono
data stream and two line-out drivers
UART
1 sets
2 sets with CTS/RTS pin
MSDC
1 sets
1 set with 8-bit data lines
JTAG
1 set
for the firmware upgrade and the debugging
SIM
2 sets
SIM interface,Support DSDS
ADC
4 pins
ADC channel with 12-bit resolution
1.3.2 GPIO
Interface
Description
GPIO(1.8V)
37 pins
GPIO(3.3V)
18 pins
1.3.3 Antenna interface
Interface
Description
Primary Antenna
1 pin for LTE/WCDMA/GSM primary transmitting and receiving
Diversity Antenna
1 pin for LTE and WCDMA diversity receiving
1.3.4 Power input interface
Interface
Description
VSYS
2 pins. NAD main supply voltage source
VBUS
1 pin. 5.0V input for USB detection(typ 5V, max:10.5V