QY-RK3399 Core Board Hardware Manual
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3.2.Pin Definition
J1A:
Pin No.
Signal Name
Function
IO
E1-1
VCC_SYS_5V0
5V
power
input(must
connect)
E1-2
VCC_SYS_5V0
E1-3
VCC_SYS_5V0
E1-4
VCC_SYS_5V0
E1-5
VCC_SYS_5V0
E1-6
VCC_SYS_5V0
E1-7
VCC_SYS_5V0
E1-8
VCC_SYS_5V0
E1-9
VCC_SYS_5V0
E3-2
GND
E3-3
MAC_CLK
GPIO3_B3
E3-4
GPIO3_B7_u
E3-5
GPIO0_A1_u
E3-6
MAC_MDIO
GPIO3_B5
E3-7
MAC_MDC
GPIO3_B0
E3-8
GPIO3_B2_u
E3-9
GND
E3-10
MAC_TXEN
GPIO3_B4
1
MAC_TXD3
GPIO3_A1
3
MAC_TXD2
GPIO3_A0
5
MAC_TXD1
GPIO3_A5
7
MAC_TXD0
GPIO3_A4