MYZR-RK3288-MB314 硬件介绍

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= 接口概览(overview of interfaces) =

正面图(front view)

Myrk3288 mb314 1.1.0.1.png

背面图(rear view)

Myrk3288 mb314 1.2.0.1.png

图示模块(icon module)

图示
(graphic)
接口描述
(interface description)
丝印
(silk screen)
图示
(graphic)
接口描述
(interface description)
丝印
(silk screen)
1
12V IN J4 18 扩展接口
<thead> </thead> <tbody> </tbody>
J11
2
BL
J5
19
MXM314
U14
-
3
EDP
J7
20
RTC电池座
BT1
-
4
MIPI-CSI
J19
21
DUAL LVDS
J9
-
5
1000M Ethernet
U13
22
SINGEL LVDS
J8
-
6
10M/100M Ethernet
P1
23
DC IN
J3
-
7
USB HOST
J10
24
主电源开关
J2
-
8
HP JACK
P15
25
OTG
J1
-
9
HDMI
J14
26
WIFI
U2
-
10
CIF
J17
27
RECOVER
SW5
-
11
功能串口
P3
28
RESET
SW4
-
12
调试串口
P4
29
SLEEP WAKE
SW3
-
13
mini-PCIE
J13
30
VOL +
SW2
-
14
电压跳线选择
J15
31
VOL -
SW1
-
15
USB to UART
J16
32
USB to WIFI
U26
-
16
SIM卡座
CON1
33
GPS
U24
-
17
JTAG
U19
34
TF卡座
U22
}

= 接口功能(interface function) =

串口(serial port)

丝印
(silkscreen)
功能
(function)
接口属性
(Interface attributes)
P4
调试串口
(debug serial port)
<thead> </thead> <tbody> </tbody>
3线标准RS232接口。
( 3 Line standard RS232 interface)
P3
功能串口
(function serial port)
3线标准RS232接口。
( 3 Line standard RS232 interface)
}

引脚及信号定义如下:
  definition of pin & signal as below:
Myrk3288 mb314 2.1.0.1.png
U20

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U20-1 C1+ U20-2 <thead> </thead> <tbody> </tbody>
C1+
U20-3
C1-
U20-4
V-
-
U20-5
C2-
U20-6
V-
-
U20-7
T2OUT
U20-8
R2IN
-
U20-9
R2OUT
U20-10
T2IN
-
U20-11
T1IN
U20-12
R1OUT
-
U20-13
R1IN
U20-14
T1OUT
-
U20-15
GND
U20-16
VCC
}

GPS

丝印(silkscreen): U24
模块型号:NEO-6M
module model:NEO-6M
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.2.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U24-1 Reserved1 U24-2 <thead> </thead> <tbody> </tbody>
NC
U24-3
TIMEPULSE
U24-4
EXTINT0
-
U24-5
USB_DM
U24-6
USB_DP
-
U24-7
VDDUSB
U24-8
Reserved2
-
U24-9
VCC_RF
U24-10
GND1
-
U24-11
RF_IN
U24-12
GND2
-
U24-13
GND3
U24-14~19
NC
-
U24-20
TXD1
U24-21
RXD1
-
U24-22
V_BCKP
U24-23
VCC
-
U24-24
GND
}

TF卡座

丝印(silkscreen): U22
接口属性:标准TF卡座
interface property:standard TF card cassette
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.3.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U22-1 SDMMC_D2 U22-2 <thead> </thead> <tbody> </tbody>
SDMMC_D3
U22-3
SDMMC_CMD
U22-4
VDD
-
U22-5
SDMMC_CLK
U22-6
VSS
-
U22-7
SDMMC_D0
U22-8
SDMMC_D1
-
U22-9
SDMMC_DET
U22-10
GND_01
-
U22-11
GND_02
U22-12
GND_03
-
U22-13
GND_04
}

HDMI

丝印(silkscreen):J14
接口属性:HDMI-1.4标准接口
interface property:HDMI-1.4 standard interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.4.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J14-1 HDMI_TX2P J14-11 <thead> </thead> <tbody> </tbody>
CK_SHIELD
J14-2
D2_SHIELD
J14-12
HDMI_TXCN
-
J14-3
HDMI_TX2N
J14-13
HDMI_CEC
-
J14-4
HDMI_TX1P
J14-14
HEC
-
J14-5
D1_SHIELD
J14-15
12C_CLK
-
J14-6
HDMI_TX1N
J14-16
12C_DADT
-
J14-7
HDMI_TX0P
J14-17
GND
-
J14-8
D0_SHIELD
J14-18
+5V
-
J14-9
HDMI_TX0N
J14-19
HOT_PLUG_DET
-
J14-10
HDMI_TXCP
G1-G4
HDMI_CHASSIS
}

CIF

丝印(silkscreen):J17
接口属性:CIF摄像头接口
interface property:CIF Camera interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.5.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J17-1 NC J17-13 <thead> </thead> <tbody> </tbody>
CIF_CLKOUT
J17-2
GND
J17-14
CIF_D6
-
J17-3
CIF_SDA
J17-15
GND
-
J17-4
VCC28_DVP
J17-16
CIF_D5
-
J17-5
CIF_SCL
J17-17
CIF_CLKIN
-
J17-6
CIF_RST
J17-18
CIF_D4
-
J17-7
CIF_VSYNC
J17-19
CIF_D0
-
J17-8
CIF_PDN0
J17-20
CIF_D3
-
J17-9
CIF_HRER
J17-21
CIF_D1
-
J17-10
C_DVDD
J17-22
CIF_D2
-
J17-11
VCC18_DVP
J17-23
NC
-
J17-12
CIF_D7
J17-24
NC
}

MIPI-CSI

丝印(silkscreen):J19
接口属性:MIPI-CSI摄像头接口
interface property:MIPI-CSI Camera interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.6.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J19-1 NC J19-16 <thead> </thead> <tbody> </tbody>
MIPI_RX_D3P
J19-2
VCC_2V8
J19-17
GND
-
J19-4
VCC18_DVP
J19-19
MIPI_RX_D2P
-
J19-5
NC
J19-20
MIPI_RX_D2N
-
J19-6
GND
J19-21
GND
-
J19-7
VCC28_DVP
J19-22
MIPI_RX_D1P
-
J19-8
GND
J19-23
MIPI_RX_D1N
-
J19-9
CSI2-SDA
J19-24
GND
-
J19-10
CSI2-SCL
J19-25
MIPI_CLKP
-
J19-11
MIPI_RST_1V8
J19-26
MIPI_CLKN
-
J19-12
PWDN1
J19-27
GND
-
J19-13
GND
J19-28
MIPI_RX_D0P
-
J19-14
MIPI_CLKIN
J19-29
MIPI_RX_D0N
-
J19-15
GND
J19-30
GND
}

SINGEL LVDS

丝印(silkscreen):J8
接口属性:单路LVDS接口,用于连接MY-LCD_LVDS液晶板
interface property:Single way LVDS interface for connecting MY-LCD_LVDS LCD panel
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.7.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J8-1 LVDS_D1N J8-14 <thead> </thead> <tbody> </tbody>
LVDS_CLK0P
J8-2
LVDS_D1P
J8-15
GND
-
J8-3
GND
J8-16
GPIO_B5
-
J8-4
LVDS_D0P
J8-17
GPIO_B6
-
J8-5
LVDS_D0N
J8-18
GND
-
J8-6
GND
J8-19
LCDC_BL
-
J8-7
LVDS_D3N
J8-20
GND
-
J8-8
LVDS_D3P
J8-21
TOUCH_SCL
-
J8-9
GND
J8-22
TOUCH_SDA
-
J8-10
LVDS_D2P
J8-23~25
GND
-
J8-11
LVDS_D2N
J8-26~30
5V IN
-
J8-12
GND
8-31~40
NC
-
J8-13
LVDS_CLK0N
}

EDP

丝印(silkscreen):J7
接口属性:EDP屏接口,用于连接15.6寸EDP显示屏
interface property:EDP screen interface for connecting the 15.6-inch EDP display
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.8.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J7-1 NC J7-16 <thead> </thead> <tbody> </tbody>
GND
J7-2
GND
J7-17
EDP_HPD
-
J7-3
EDP_TX1N
J7-18
GND
-
J7-4
EDP_TX1P
J7-19
GND
-
J7-5
GND
J7-20
GND
-
J7-6
EDP_TX0N
J7-21
GND
-
J7-7
EDP_TX0P
J7-22
BL_EN
-
J7-8
GND
J7-23
EDP_BL
-
J7-9
EDPAUXP
J7-24
NC
-
J7-10
EDPAUXN
J7-25
NC
-
J7-11
GND
J7-26
BL_12V
-
J7-12
GEN_3V3
J7-27
BL_12V
-
J7-13
GEN_3V3
J7-28
BL_12V
-
J7-14
NC
J7-29
BL_12V
-
J7-15
GND
J7-30
GND
}

BL

丝印(silkscreen):J5
接口属性:背光12V输出,用于给设备外接屏供给12V背光电压
interface property:Backlight output of 12V, used to supply 12V backlight voltage to the external screen of equipment
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.9.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J5-1 GND J5-4 <thead> </thead> <tbody> </tbody>
BL_EN
J5-2
GND
J5-5
BL_12V
-
J5-3
EDP_BL
J5-6
BL_12V
}

DUAL LVDS

丝印(silkscreen):J9
接口属性:双路LVDS接口
interface property:LVDS Dual interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.10.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J9-1 5V IN J9-2 <thead> </thead> <tbody> </tbody>
5V IN
J9-3
5V IN
J9-4
GND
-
J9-5
GND
J9-6
GND
-
J9-7
LVDS_D0N
J9-8
LVDS_D0P
-
J9-9
LVDS_D1N
J9-10
LVDS_D1P
-
J9-11
LVDS_D2N
J9-12
LVDS_D2P
-
J9-13
GND
J9-14
GND
-
J9-15
LVDS_CLK0N
J9-16
LVDS_CLK0P
-
J9-17
LVDS_D3N
J9-18
LVDS_D3P
-
J9-19
LVDS_D5N
J9-20
LVDS_D5P
-
J9-21
LVDS_D6N
J9-22
LVDS_D6P
-
J9-23
LVDS_D7N
J9-24
LVDS_D7P
-
J9-25
GND
J9-26
GND
-
J9-27
LVDS_CLK1N
J9-28
LVDS_CLK1P
-
J9-29
LVDS_D8N
J9-30
LVDS_D8P
}

HP JACK

丝印(silkscreen):P15
接口属性:音频接口,用于耳机音频输出以及MIC输入
interface property:Audio interface for earphone audio output and MIC input
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.11.0.1.png
U32

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U32-1 12S0_CLK U32-6 <thead> </thead> <tbody> </tbody>
12S0_SDO0
U32-2
AUD_3V3
U32-7
12S0_LRCK_RX/TX
-
U32-3
AUD_3V3
U32-8
12S0_SDI
-
U32-4
AAGND
U32-27
CODEC_12C_DAT
-
U32-5
12S0_SCLK
U32-28
CODEC_12C_CLK
}

OTG

丝印(silkscreen): J1
接口属性:USB OTG接口
interface property:USB OTG Interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.12.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J1-1 OTG_DET J1-6 <thead> </thead> <tbody> </tbody>
GND
J1-2
OTG_DM
J1-7
GND
-
J1-3
OTG_DP
J1-8
GND
-
J1-4
OTG_ID
J1-9
GND
-
J1-5
GND
}

USB HOST

丝印(silkscreen):J10
接口属性:双层USB接口,通过LAN9514扩展出来的host接口
interface property:Dual USB interface, extended by LAN9514 host interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.13.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J10-1 PWR1 J10-7 <thead> </thead> <tbody> </tbody>
USBSN_DP2_B
J10-2
USBSN_DM1_B
J10-8
GND
-
J10-3
USBSN_DP1_B
J10-9
GND
-
J10-4
GND
J10-10
GND
-
J10-5
PWR2
J10-11
GND
-
J10-6
USBSN_DM2_B
J10-12
GND
}

10M/100M Ethernet

丝印(silkscreen):P1
接口属性:标准百兆网接口,通过LAB9514扩展出来的以太网接口,10M/100M自适应
interface property:Standard gigabit interface, extended Ethernet interface via LAB9514, 10M/100M self-adaption
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.14.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
P1-1 TXP0 P1-7 <thead> </thead> <tbody> </tbody>
NC
P1-2
TXN0
P1-8
GND
-
P1-3
RXP0
P1-9
GEN_3V3
-
P1-4
GND
P1-10
nSPD_LED_GPIO2
-
P1-5
GEN_3V3
P1-11
nLNKA_LED_GPIO2
-
P1-6
RXN0
P1-12
GEN_3V3
}

USB to WIFI

丝印(silkscreen):U26
模块型号:UM12BS
Module model: UM12BS
模块描述:USB转WIFI
Module description: USB is used as USB-WIFI interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.15.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U26-1 GND U26-4 <thead> </thead> <tbody> </tbody>
USBDN_DM3_B
U26-2
ANTENNA_1
U26-5
USBDN_DP3_B
-
U26-3
GEN_3V3
U26-6
GND
}

1000M Ethernet

丝印(silkscreen):U13
接口属性:千兆以太网接口,10M/100M/1000M自适应
interface property:Gigabit Ethernet interface, 10M/100M/1000M adaptive
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.16.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
U13-1 TEST POINT U13-8 <thead> </thead> <tbody> </tbody>
NRGMI_D_P
U13-2
RGMI_A_P
U13-9
RGMI_D_N
-
U13-3
RGMI_A_N
U13-10
GND
-
U13-4
RGMI_B_P
U13-11
RGMI_3V3_A
-
U13-5
RGMI_C_P
U13-12
RGMI_LED2
-
U13-6
RGMI_C_N
U13-13
RGMI_LED1
-
U13-7
RGMI_B_N
U13-14
RGMI_3V3_A
}

mini-PCIE

丝印(silkscreen):J13
接口属性:标准mini-PCIE接口
interface property:standard MINI-PCIE port
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.17.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J13-1 NC J13-2 <thead> </thead> <tbody> </tbody>
GEN_3V3
J13-3
NC
J13-4
GND
-
J13-5
NC
J13-6
NC
-
J13-7
NC
J13-8
PCLE_UIM_PWR
-
J13-9
GND
J13-10
PCLE_UIM_DATA
-
J13-11
NC
J13-12
PCLE_UIM_CLK
-
J13-13
NC
J13-14
PCLE_UIM_RST
-
JJ13-15
GND
J13-16
PCLE_UIM_VPP
-
J13-17
NC
J13-18
GND
-
J13-19
NC
J13-20
NC
-
J13-21
GND
J13-22
NC
-
J13-23
NC
J13-24
NC
-
J13-25
NC
J13-26
GND
-
J13-27
GND
J13-28
NC
-
J13-29
GND
J13-30
NC
-
J13-31
NC
J13-32
NC
-
J13-33
NC
J13-34
GND
-
J13-35
GND
J13-36
USB_D-
-
J13-37
GND
J13-38
USB_D+
-
J13-39
GEN_3V3
J13-40
GND
-
J13-41
GEN_3V3
J13-42
LED_WWAN_B
-
J13-43
GND
J13-44
NC
-
J13-45
NC
J13-46
NC
-
J13-47
NC
J13-48
NC
-
J13-49
NC
J13-50
GND
-
J13-51
NC
J13-52
GEN_3V3
}

电压跳线选择(Voltage jumper selection)

丝印(silkscreen):J15
接口属性:5V/3.3V跳线
interface property:5V/3.3V Voltage jumper selection
Myrk3288 mb314 2.18.0.1.png

USB to UART

丝印(silkscreen):J16
接口属性:USB扩展UART接口
interface property:USB expansion UART interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.19.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J16-1 GEN_3V3 J16-2 <thead> </thead> <tbody> </tbody>
GEN_3V3
J16-3
USB_TXD
J16-4
USB_RXD
-
J16-5
USB_nRTS
J16-6
USB_nCTS
-
J16-7
USB_nDTR
J16-8
USB_nDSR
-
J16-11
NC
J16-12
NC
-
J16-13
USB_CBUS0
J16-14
USB_CBUS1
-
J16-15
USB_CBUS2
J16-16
USB_CBUS3
-
J16-17
USB_CBUS4
J16-18
NC
-
J16-19
GND
J16-20
GND
}

WIFI

丝印(silkscreen): E1
接口属性:标准WIFI天线座
interface property:standard antenna pedesta
Myrk3288 mb314 2.20.0.1.png

DC IN

丝印(silkscreen): J3
接口属性:外部5V主电源输入,2.5A
interface property:External 5V main power input, 2.5a
Myrk3288 mb314 2.21.0.1.png

电源开关(power switch)

丝印(silkscreen): J2
接口属性:主电源开关
interface property:main power switch
状态属性:—,闭合,O,断开
Status attribute: --, close, O, break
Myrk3288 mb314 2.22.0.1.png

12V IN

丝印(silkscreen):J4
接口属性:外部12V输入
interface property:External 12V power input
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.23.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J4-1 BL_12V J4-3 <thead> </thead> <tbody> </tbody>
GND
J4-2
BL_12V
J4-4
GND
}

RESET

丝印(silkscreen): SW4
按键属性:复位按键
Key attributes:Reset
Myrk3288 mb314 2.24.0.1.png

SLEEP WAKE

丝印(silkscreen): SW3
按键属性:系统开关机按键,长按1秒开机,长按3秒关机
Key attributes: system switch key, long press 1 second to start up, long press 3 seconds to shut down
Myrk3288 mb314 2.25.0.1.png

VOL +

丝印(silkscreen): SW2
按键属性:控制音量(音量加)
Key attributes: control volume (volume plus)
Myrk3288 mb314 2.26.0.1.png

VOL –

丝印(silkscreen): SW1
按键属性:控制音量(音量减)
Key attributes: control volume (volume reduction)
Myrk3288 mb314 2.27.0.1.png

RECOVER

丝印(silkscreen): SW5
按键属性:烧写按键,与开机键(SW3)同时按下,进入烧写模式
Key attributes: burn the write button, press it at the same time as the start button (SW3), and enter the burn write mode
Myrk3288 mb314 2.28.0.1.png

扩展接口(extension interface)

丝印(silkscreen):J11
接口属性:空闲管脚,用于扩展应用
Interface properties: free pins for extending applications
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.29.0.1.png

引脚
(pin)
功能信号名称
(signal name)
引脚
(pin)
功能信号名称
(signal name)
J11-1 5V IN J11-2 <thead> </thead> <tbody> </tbody>
GEN_3V3
J11-3
5V IN
J11-4
GEN_3V3
-
J11-5
NC
J11-6
HSIC_DATA
-
J11-7
LIGHT_INT
J11-8
HSIC_STROBE
-
J11-9
GSEN_INT
J11-10
CABC_EN
-
J11-11
TOUCH_INT
J11-12
FLASH_EN
-
J11-13
LCD_RST
J11-14
SPK_CTL
-
J11-15
LCD_EN
J11-16
PMUGPIO0_B5
-
J11-17
TOUCH_RST
J11-18
OTG_VBUS_DRV
-
J11-19
FLASH_TRIGOUT
J11-20
PMUGPIO0_B5
-
J11-21
GPIO7_B1
J11-22
EFUSE_PWR
-
J11-23
NC
J11-24
GND
-
J11-25
5V_DRV
J11-26
ADC_1N1
-
J11-27
GPIO5_C2
J11-28
GND
-
J11-29
UART1_RST
J11-30
ADC_1N0
-
J11-31
SPI0_CSn1
J11-32
GND
-
J11-33
SPI0_RXD
J11-34
SPI2_MOS1
-
J11-35
SPI0_TXD
J11-36
SPI2_nCS0
-
J11-37
SPI0_CSn0
J11-38
SPI2_MISO
-
J11-39
GND
J11-40
GND
-
J11-41
SPI0_CLK
J11-42
SPI2_CLK
-
J11-43
GND
J11-44
GND
-
J11-45
UART1_CTS
J11-46
FLASH0_RDY
-
J11-47
GND
J11-48
FLASH0_CLE
-
J11-49
SPDIF_TX
J11-50
FLASH0_ALE
-
J11-51
GND
J11-52
FLASH0_CS0
-
J11-53
GND
J11-54
GND
-
J11-55
GND
J11-56
GND
}

JTAG

丝印(silkscreen):U19
接口属性:JTAG接口
Interface properties: JTAG interface
引脚及信号定义:
  definition of pin & signal:
Myrk3288 mb314 2.30.0.1.png

引脚
(pin)
信号
(signal)
描述
(description)
引脚
(pin)
信号
(signal)
描述
(description)
U19-1 JTAG_TCK 测试时钟输入(TCK input) U19-2 GND <thead> </thead> <tbody> </tbody>
数字地 (digital ground)
U19-3
JTAG_TDO
测试数据输出(test data output)
U19-4
VCC
3.3V输入
-
U19-5
JTAG_TMS
测试模式选择(test mode selection)
U19-6
nRST
复位 (reset)
-
U19-7
NC
未连接 (unconnected)
U19-8
NC
未连接 (unconnected)
-
U19-9
JTAG_TDI
测试数据输入(test mode selection)
U19-10
GND
数字地 (digital ground)
}

RTC电池座(RTC battery holder)

丝印(silkscreen):BT1
接口属性:RTC纽扣电池接口
Interface property: RTC button battery interface
Myrk3288 mb314 2.31.0.1.png

MXM314

丝印(silkscreen):U14
接口属性:核心板接口,用于连接MY-RK3288_CB314核心板
Interface property: RTC button battery interface
管脚功能定义详见MY-RK3288-CB314 硬件介绍
Pin function is defined as my-rk3288_cb314