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Difference between revisions of "Rockpi4/hardware/rockpi4"

(General purpose input-output (GPIO) connector)
(Check GPIO for details.)
 
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ROCK Pi 4 has a 40-pin expansion header. Each pin is distinguished by color.
 
ROCK Pi 4 has a 40-pin expansion header. Each pin is distinguished by color.
=== Check [[Rockpi4/hardware/gpio | GPIO]] for details.===
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===== Check [[Rockpi4/hardware/gpio | GPIO]] for details.=====

Latest revision as of 01:54, 15 April 2020


    ROCK Pi 4 >  Hardware >  Main Board
Rockpi 4b interfaces description blue.png

This hardware user manual provides information about the features and signals available on ROCK Pi 4 board.

Processor

The Rockchip RK3399 Soc used in ROCK Pi 4 includes 64bits hexa core processor with dual 1.8GHz Cortex-72 and qual 1.4GHz Cortex-A53, Mali T860MP4 graphics processing unit (GPU) and Internal SRAM. It has a level 1 (L1) cache and a level 2 (L2). For level 1 cache, 48KB Icache and 32KB Dcache is for each A72. 32KB Icache and 32KB Dcache is for each A53. For level 2 cache, 1024KB cache is for big cluster and 512KB cache is for little cluster.

Networking

On the ROCK Pi 4 Model A, B board, the Giga Bit Ethernet port is provided. From the test result, we know that the bandwidth is at least 939Mbits/sec. If you are interested in POE (Power Over Ethernet), you should try it on the Pi 4 board.

The ROCK Pi 4 Model B is equipped with 2.4GHz 802.11 b/g/n and 5G ac/a WIFI. The Pi 4B also features Bluetooth 5.0.

Two LEDs are built into the RJ-45 LAN connector. This table describes the LED states when the board is powered up and the LAN subsystem is operating.

LED LED Color Led State Condition
Link Green Off
On
LAN link is not established.
LAN link is established.
Data Rate Yellow Blinking
Off
There is activity on this port.
No link is established.

Peripherals

The ROCK Pi 4 Model A and B have four USB-A connectors. One is for USB 3.0 OTG. One is for 3.0 HOST. And the others are for USB 2.0 HOST. The hardware switch for host/device switch may be useful when you use the USB 3.0 OTG connector. The ROCK Pi 4 may be operated with any generic USB computer keyboard and mouse. It may also be used with USB storage, USB to MIDI converters, and virtually any other device/component with USB capabilities.

The ROCK Pi 4 Model A and B are equipped with a standard 3.5mm jack. An audio lead is necessary to produce sound when there is not an HDMI cable. Audio can be played through speakers or headphones using jack. This requires you to use the Desktop volume control for configuration.

MIPI Camera Interface

There is a wide range of camera applications in our lives. MIPI CSI 2 lane on board support 800 MP camera via FPC connector.

The MIPI CSI interface pin specification shows below.

Pin# Name
1 VCC_CAM
2 I2C4_SDA
3 I2C4_SCL
4 CAM_MCLK
5 CAM_GPIO1
6 GND
7 MIPI_RX0_CLKP
8 MIPI_RX0_CLKN
9 GND
10 MIPI_RX0_D1P
11 MIPI_RX0_D1N
12 GND
13 MIPI_RX0_D0P
14 MIPI_RX0_D0P

MIPI Display Interface

The ROCK Pi 4 Model A and B are equipped with one HDMI connector and one MIPI DSI. As for HDMI, the maximum resolution is 4k@60Hz. Any HDMI monitor should work as a display for the Pi 4. As for MIPI DSI, it is designed for raw LCD pannel. HDMI and MIPI DSI can work at the same time.

The MIPI DSI interface pin specification shows below.

Pin# Name
1 VCC_MIPI
2 VCC_MIPI
3 GND
4 I2C_SDA_AUDIO
5 I2C_SCL_AUDIO
6 GND
7 MIPI_TX/RX_D0P
8 MIPI_TX_RX_D0N
9 GND
10 MIPI_TX/RX_CLKP
11 MIPI_TX_RX_CLKN
12 GND
13 MIPI_TX/RX_D1P
14 MIPI_TX/RX_D1N
15 GND

TF Card Interface

The TF card can be used as a system storage or an external storage. When it's used as a system storage, you had better choose the ones with storage space larger than 8GB. When it's used as an external storage, you can choose the ones with storage space up to 128GB. When the TF card is inserted into the TF card slot , the device will be automatically recognized by the system.

The TF card interface pin specification shows below.

Pin# Name
1 SDMMC0_D2
2 SDMMC0_D3
3 SDMMC0_CMD
4 VCC3V3_SYS
5 SDMMC0_CLK
6 GND
7 SDMMC0_D0
8 SDMMC0_D1
9 SDMMC0_DET_L
10 GND
11 GND
12 GND
13 GND

eMMC Socket on Board Interface Feature

The high performance eMMC module is the best choice as the system storage for ROCK Pi 4. The eMMC module with 8GB/16GB/32GB/64GB/128GB is available.

The eMMC Socket pin specification shows below.

Name Pin# Pin# Name
GND 1 34 GND
EMMC_D5 2 33 EMMC_D6
GND 3 32 GND
EMMC_D4 4 31 EMMC_D7
GND 5 30 GND
EMMC_D0 6 29 EMMC_D1
GND 7 28 GND
EMMC_CLK 8 27 EMMC_D2
GND 9 26 GND
EMMC_D3 10 25 EMMC_CMD
GND 11 24 GND
EMMC_RSTN 12 23 VCC3V3_SYS
GND 13 22 VCC3V3_SYS
GND 14 21 VCC_1V8
EMMC_RCLK 15 20 VCC_1V8
GND 16 19 GND
GND 17 18 GND

PCIE M.2 NGFF M-KEY SOCKET Interface

There is one PCIe port in Soc RK3399 and it is compatible with PCI Express Base Specification Revision 2.1.

On ROCK Pi 4 board, M.2 connector supports up to 2T M2 NVME SSD.

The PCIE M.2 interface pin specification shows below.

Name Pin# Pin# Name
GND 1 2 +3.3V
GND 3 4 +3.3V
PERn3 5 6 NC
PERp3 7 8 NC
GND 9 10 DAS/DSS#
PETn3 11 12 +3.3V
PETp3 13 14 +3.3V
GND 15 16 +3.3V
PERn2 17 18 +3.3V
PERp2 19 20 EMMC_CMD
GND 21 22 NC
PETn2 23 24 NC
PETp2 25 26 NC
GND 27 28 NC
PERn1 29 30 NC
PERp1 31 32 NC
GND 33 34 NC
PETn1 35 36 NC
PETp1 37 38 DEVSLP
GND 39 40 NC
PERn0/SATA-B+ 41 42 NC
PERp0/SATA-B- 43 44 NC
GND 45 46 NC
PETn0/SATA-A- 47 48 NC
PETp0/SATA-A+ 49 50 PERST#
GND 51 52 CLKREQ#
REFCLKN 53 54 PEWake#
REFCLKP 55 56 NC
GND 57 58 NC
NC 67 68 SUSCLK
PEDET 69 70 +3.3V
GND 71 72 +3.3V
GND 73 74 +3.3V
GND 75

HDMI Interface

The ROCK Pi 4 Model A and B are equipped with one HDMI connector and one MIPI DSI. As for HDMI, the maximum resolution is 4k@60Hz. Any HDMI monitor should work as a display for the Pi 4. As for MIPI DSI, it is designed for raw LCD pannel. HDMI and MIPI DSI can work at the same time.

HDMI port supports Consumer Electronics Control (CEC) function. Using ROCK Pi 4 connected to a TV that supports CEC, you can use the command line cec-client application to control the inputs and the TV itself.

The HDMI interface pin specification shows below.

Pin# Name
1 HDMI_TX2P
2 GND
3 HDMI_TX2N
4 HDMI_TX1P
5 GND
6 HDMI_TX1N
7 HDMI_TX0P
8 GND
9 HDMI_TX0N
10 HDMI_TXCP
11 GND
12 HDMI_TXCN
13 PORT_CEC
14 NC
15 DDC_SCL
16 DDC_SDA
17 GND
18 VCC5V0_HDMI
19 HDMI_HPD

General purpose input-output (GPIO) connector

ROCK Pi 4 has a 40-pin expansion header. Each pin is distinguished by color.

Check GPIO for details.