Users Manual Part 2

Thundercomm TurboX C865 System on Module
Copyright © 2018 All Rights Reserved, Thundercomm Technology Co., Ltd.
1
SPI2_CS_IMU CON1 J39
P3
IO GPIO167
Table 3.2-8 SSC interface definition
2.2.9 SDIO Interface
The SOM support dual 4-laneSDIO, SDC2 connect to SD-card.
The SDIO is high-speed signal group. It should protect other sensitive signals/circuits from SD corruption, and
protect SD signals from noisy signals (clock, RF and so on).
 The clock can be up to 200 MHz.
 The signals routing should be 50ohm ±10% impedance control.
 CLK to DATA/CMD length matching less than 1mm.
 The spacing to all other signals should 2X line width
 Maximum bus capacitance less than 1.0pF.
 Each trace needs to be next to a ground plane.
SDIO (SDC2) Interface
PIN Name
Location
PIN
Voltage
Type
Description
Notes
SDC2_CLK_CONN CON1 B13
P2
DO
SD card signals;
SD_UFS_CARD_DET_
N need pull up to P3
SDC2_CMD CON1 A13
P2
IO
SDC2_DATA_3 CON1 B11
P2
IO
SDC2_DATA_2 CON1 A11
P2
IO
SDC2_DATA_1 CON1 C12
P2
IO
SDC2_DATA_0 CON1 B12
P2
IO
SD_UFS_CARD_DET_N CON1 G43
P3
DI
SDIO (SDC4) Interface
PIN Name Location PIN
Voltage
Type Description Notes
SDC4_DATA0 CON1 A39
P3
IO
SDIO Signals
Compliant with SDIO
standard specification.
GPIO76
SDC4_DATA1
CON1
A38
P3
IO
GPIO75
SDC4_DATA2
CON1
A4
P3
IO
GPIO74
SDC4_DATA3
CON1
E45
P3
IO
GPIO72
SDC4_CLK
CON1
D44
P3
DO
GPIO73
SDC4_CMD
CON1
E44
P3
IO
GPIO71
Table 2.2-8 SDIO interface definition
2.2.10 QUP Interface
These GPIOs are available as Qualcomm universal peripheral (QUP) interface ports that can be configured for
UART, SPI, I2C or I3C operation.