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VT-SBC-RK3568-NT | User Manual 17
24
SPI1_CS0_M1
I/O
SPI1 CS signal (3.3V level)
25
GND
P
Ground
26
SPI1_CLK_M1
O
SPI1 clock (3.3V level)
27
UART0_RX
I
UART0 data input (3.3V level)
28
UART0_TX
O
UART0 data output (3.3V level)
29
SPI1_MISO_M1
I/O
SPI1 MISO (3.3V level)
30
GND
P
Ground
31
SPI1_MOSI_M1
I/O
SPI1 MOSI (3.3V level)
32
RK809_PWRON
P
RK809 power_on (3.3V level)
33
UART2_RX_M0_DEBUG
I
UART2 data input for AP debug (3.3V
level)
34
GND
P
Ground
35
UART2_TX_M0_DEBUG
O
UART2 data output for AP debug (3.3V
level)
36
UART4_TX_M1
O
UART4 data output (3.3V level)
37
UART7_TX_M1
O
UART7 data output (3.3V level)
38
UART4_RX_M1
I
UART4 data input (3.3V level)
39
GND
P
Ground
40
UART7_RX_M1
I
UART7 data input (3.3V level)
2.4.10
U3 Wi-Fi and Bluetooth (3)
VT-SBC-RK3568-NT offers a combo SiP module, combining Wi-Fi 802.11 b/g/n/ac and
Bluetooth 5.0. The Wi-Fi interface employs SDIO2.0/SDIO 3.0, and the Bluetooth uses
UART for communication. There is an antenna interface next to the module for connecting
the Wi-Fi & Bluetooth antenna.
VT-SBC-RK3568-NT supports wake up from the sleep mode via the Wi-Fi & Bluetooth
functions. To ensure successful wakeup of the Board, the Wi-Fi & Bluetooth module shall
keep working under the sleep mode, with the VCC_3V3 and VCC_1V8 power supplies on.
2.4.11
Micro SD slot (11)
VT-SBC-RK3568-NT offers a Micro SD card slot at its back, supporting SD3.0 and MMC 4.51
interfaces. The Micro SD card can be used for RAM expansion or used as mobile storage.
Micro SD card hot plug is supported.
2.4.12
Debugging holes (12)
VT-SBC-RK3568-NT reserves POWER ON (TP11), RESET (TP12), RECOVERY (TS7) holes for
debugging. TP11 hole is used the same way as pin 32 (POWER ON) on the GPIO header.
