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WB10-AT i.MX 8M Development Kit Hardware User
Guide
Apr il 2018
Vers i o n 0.2
Hardware Version: R001
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Revisions History
Date
Version
Number
Document Changes
2018/03/09
0.1
Initial Draft
2018/04/13
0.2
Fixed some typos
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Table of Contents
1 Overview ................................................................................................................................................................................. 4
1.1 ... General Information ......................................................................................................................................................... 4
1.2 ... Architecture and Block Diagram ................................................................................................................................ 6
1.3 ... Feature Summary .............................................................................................................................................................. 6
1.4 ... Dimension .............................................................................................................................................................................. 7
2 Main Hardware Components ......................................................................................................................................... 9
2.1 ... CPU ............................................................................................................................................................................................ 9
2.2 ... Memory ................................................................................................................................................................................ 10
2.3 ... Power Management IC ................................................................................................................................................. 10
2.4 ... eMMC Storage ................................................................................................................................................................... 10
2.5 ... Wi-Fi/Bluetooth Module .............................................................................................................................................. 11
3 Interfaces and Connectors ............................................................................................................................................ 12
3.1 ... SOMCON2601 Connector ............................................................................................................................................. 12
3.2 ... SOMCON2401 Connector ............................................................................................................................................. 14
3.3 ... SOMCON2501 Connector ............................................................................................................................................. 15
3.4 ... Carrier board Expansion Header ............................................................................................................................. 16
3.5 ... Power Signals .................................................................................................................................................................... 17
3.6 ... HDMI, RJ45, USB and Trace Log ............................................................................................................................... 18
3.7 ... DSI Connector ................................................................................................................................................................... 19
3.8 ... MIPI CSI connector ......................................................................................................................................................... 20
3.9 ... SD/MMC ............................................................................................................................................................................... 21
3.10 . SAIs......................................................................................................................................................................................... 21
3.11 . M.2 Connector ................................................................................................................................................................... 23
4 Reference Documents ..................................................................................................................................................... 24
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1 Overview
1.1 General Information
WB10-AT iMX8M development kit is composed of a WB10-AT SOM and a carrier board.
Figure 1-1 WB10-AT iMX8M development kit
Figure 1-2 Top side connectors of development kit
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Figure 1-3 Bottom side connectors of development kit
WB10-AT i.MX8M SOM is a high-performance System on Module (SOM) which is
designed based on NXP® i.MX 8M Quad processor. The i.MX 8M Quad integrates four
ARM® Cotex-A53 up to 1.5GHz and one Cotex-M4 cores to provide industry-leading
audio voice and video processing for applications that scale from consumer home audio
to home & building automation, voice assistance & machine vision, healthcare industry,
etc. It supports video quality with full 4K Ultra HD resolution and supports the highest
levels of pro audio fidelity with more than 20 audio channels each @384KHz as well.
WB10-AT SOM module offers a wide range of interfaces - GPIOs, PWM, I2C, SPI, CSI, DSI,
HDMI, UART, USB 3.0 and synchronous audio interface (SAI) that supports full duplex
serial interfaces with frame synchronization, such as I2S, AC97, TDM, and codec/DSP
interfaces. Moreover, this module features an Ethernet PHY on the module to support
Gigabits Ethernet Transceiver with HP Auto-MDIX.
It targets a wide range of embedded products such as medical devices, industrial
automation, Human Machine Interfaces (HMI), data acquisition, and much more.
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1.2 Architecture and Block Diagram
Figure 1-4 WB10-AT System Block Diagram
1.3 Feature Summary
NXP i.MX 8M
1GB LPDDR4 RAM
4GB eMMC
HDMI2.0a output
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1 x MIPI DSI
2 x MIPI CSI
Wi-Fi 802.11 a/b/g/n/ac, 2x2 MIMO
Bluetooth 4.2
1 x USB 2.0 OTG
1 x USB 3.0 Host
1x Ethernet Gigabits
1 x SD/MMC
Serial interfaces (3 x I2C, 3 x UART, 1 x SPI, 4 x SAI)
GPIOs/2 x PWM
1x PCIe 2.0
1.4 Dimension
Figure 1-5 WB10-AT iMX8M SOM Dimension
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Figure 1-6WB10-AT Carrier Board Dimension
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2 Main Hardware Components
WB10-AT i.MX8M SOM adopts three 80-pin headers (Hirose DF40C-80DP-04V) to
connect with the carrier board. It integrates the NXP®i.MX8M, LPDDR4 Memory, eMMC,
Power Management IC (PMIC), and Wi-Fi/Bluetooth on the module.
Figure 2-1 – Top side of Wibo iMX8M SOM
Figure 2-2 – Bottom side of Wibo iMX8M SOM
2.1 CPU
The i.MX8M family of applications processors based on ARM® Cortex®-A53 and CortexM4 Cores provide industry-leading audio, voice and video processing for applications.
The features of the i.MX8M family of processors include the following:
• 4xARM Cortex-A53 plus ARM Cortex-M4
• L1 Instruction Cache
32 KB L1 Instruction Cache for A53
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16 KB L1 instruction Cache for M4
• L1 Data Cache (each core)
32 KB L1 Data Cache (A7)
16 KB L1 Data Cache (M4)
• The ARM Cortex-A53 Core complex shares
General interrupt controller (GIC)
Global timer
Snoop control unit (SCU)
Unified instruction and data (1MB)
2.2 Memory
WB10-AT i.MX8M SOM is available with up to 3GB of LPDDR4 memory. The default
configuration is 1GB LPDDR4.
2.3 Power Management IC
WB10-AT i.MX8M SOM features Rohm BD7183MWV power management IC.
BD7183MWV is a programmable power management IC that integrates 8 buck
regulators and 7 LDOs to provide all power rails required by SoC and peripherals.
For system management, it provides the following features,
Support software shutdown or hardware power off
External wakeup source
Output monitor
PWROK signal for reset or power off
OVP, UVLO, TSD
2.4 eMMC Storage
The onboard eMMC device is connected on the SD1 pins of the i.MX8M processor in an 8bit width configuration.
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2.5 Wi-Fi/Bluetooth Module
The WB10-AT iMX8M SOM adopts Fn-Link 8274B combo module that integrates
wireless local area network 802.11a/b/g/n/ac2x2 MIMO and Bluetooth 4.2
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3 Interfaces and Connectors
WB10-AT SOM is equipped with three Hirose DF40C-80DP-04Vconnectors- CON2401,
CON2501 and CON2601 to connected with Carrier board.
Below are the detail pin assignments and functionality of both SOM and carrier board.
3.1 SOMCON2601 Connector
Table 3-1 SOM CNO2601 Connector
CON2601
Pin#
Signal Name
i.MX8
Pin #
i.MX8 Ball Name
CON2601
Pin#
Signal Name
i.MX8
Pin #
i.MX8 Ball Name
1
PWRON_B .
2
VDD_SD2 .
3
BTB_GPIO5_IO7
A4
ECSPI1_MOSI
4
VDD_ETH_3V3
.
5
BTB_GPIO5_IO6
D5
ECSPI1_SCLK
6
GND .
7
GND
.
8
GPIO3_IO6
G20
9
PCIE2_RXM
D24
10
GPIO3_IO12
L19
11
PCIE2_RXP
D25
12
GPIO3_IO15
K19
13
GND
.
14
GPIO3_IO7
J20
15
PCIE2_TXM
E24
16
GPIO3_IO16
K20
17
PCIE2_TXP
E25
18
GPIO3_IO10
L20
19
GND
.
20
GPIO3_IO8
H22
21
PCIE2_REF_CLKM
F24
22
GPIO3_IO11
J22
23
PCIE2_REF_CLKP
F25
24
GPIO3_IO9
J21
25
GND
.
26
GPIO3_IO18
K21
27
GPIO3_IO17
K22
28
GND .
29
SD2_CLK
L22
30
SD2_WP
M21
31
GPIO3_IO14
M20
32
SD2_CMD
M22
33
GPIO3_IO13
M19
34
SD2_DATA0
N22
35
SD2_DATA3
P21
36
SD2_DATA1
N21
37
SD2_nRST
R22
38
SD2_DATA2
P22
39
SD2_nSDCD
L21
40
GND .
41
JTAG_TCK
T5
42
JTAG_TMS
V5
43
JTAG_nTRST
U6
44
JTAG_TDO
U5
45
GND
.
46
BOOT_MODE1
V6
47
ETHER_TRXN3 .
48
BOOT_MODE0
W6
49
ETHER_TRXP3 .
50
JTAG_TDI
W5
51
GND
.
52
ONOFF
W21
ONOFF
53
ETHER_TRXN2 .
54
GND .
55
ETHER_TRXP2 .
56
LED_1000 .
57
GND
.
58
LED_ACT .
59
ETHER_TRXN1 .
60
SYS_nRST .
61
ETHER_TRXP1 .
62
VDD_1V8 .
63
GND
.
64
VDD_1V8 .
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ETHER_TRXN0 .
66
VDD_SNVS_3V3
.
67
ETHER_TRXP0 .
68
PORn
W20
POR_B
69
GND
.
70
GND .
71
VDC_5V .
72
VDC_5V .
73
VDC_5V .
74
VDC_5V .
75
VDC_5V .
76
VDC_5V .
77
VDC_5V .
78
VDC_5V .
79
VDC_5V .
80
VDC_5V .
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3.2 SOMCON2401 Connector
Table 3-2 SOM CON2401 Connector
CON2401
Pin#
Signal Name
i.Mx8
Pin #
i.MX8 Ball Name
CON2401
Pin#
Signal Name
i.Mx8
Pin #
i.MX8 Ball Name
1
HDMI_AUXM
V2
2
HDMI_CEC
P1
3
HDMI_AUXP
V1
4
HDMI_DDC_SDA
P3
5
GND
.
6
HDMI_DDC_SCL
R3
7
HDMI_D0M
T2
8
HDMI_HPD
W2
9
HDMI_D0P
T1
10
GND .
11
GND
.
12
HDMI_D1P
U2
13
HDMI_D2P
N2
14
HDMI_D1M
U1
15
HDMI_D2M
N1
16
GND .
17
GND
.
18
HDMI_D3M
M2
19
SAI1_RXC
K1
20
HDMI_D3P
M1
21
SAI1_RXD0
K2
22
GND .
23
SAI1_RXD3
J2
24
SAI1_RXD1
L2
25
SAI1_RXD4
J1
26
SAI1_RXFS
L1
27
SAI2_RXFS
J4
28
SAI1_RXD2
H2
29
BTB_GPIO1_IO3
P4
GPIO1_IO03
30
SAI1_TXFS
H1
31
BTB_GPIO1_IO1
T7
GPIO1_IO01
32
SAI2_RXC
H3
33
SAI5_RXFS
N4
34
SAI2_TXFS
H4
35
SAI5_RXD2
M4
36
SAI1_RXD7
G1
37
BTB_GPIO1_IO5
P7
GPIO1_IO05
38
GND .
39
BTB_GPIO1_IO12
L7
GPIO1_IO12
40
SAI1_RXD6
G2
41
GND
.
42
BTB_GPIO1_IO6
N5
GPIO1_IO06
43
SAI5_MCLK
K4
44
SAI5_RXD0
M5
45
SAI5_RXD3
K5
46
BTB_GPIO1_IO8
N7
GPIO1_IO08
47
BTB_GPIO1_IO13
K6
GPIO1_IO13
48
GND .
49
BTB_GPIO1_IO15
J6
GPIO1_IO15
50
SAI5_RXD1
L4
51
SAI2_MCLK
H5
52
SAI5_RXC
L5
53
SAI2_RXD
H6
54
SAI2_TXC
J5
55
SPDIF_RX
G6
56
SAI2_TXD
G5
57
SPDIF_EXT_CLK
E6
58
SPDIF_TX
F6
59
SAI1_TXD0
F2
60
SAI3_TXFS
G3
61
GND
.
62
SAI1_RXD5
F1
63
SAI3_RXD
F3
64
GND .
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SAI1_TXC
E1
66
SAI3_RXFS
G4
67
SAI1_TXD1
E2
68
SAI1_TXD3
D1
69
SAI3_RXC
F4
70
SAI1_TXD4
D2
71
SAI1_TXD7
C1
72
SAI3_TXD
C3
73
SAI1_TXD5
C2
74
SAI3_MCLK
D3
75
GND
.
76
GND .
77
SAI1_TXD2
B2
78
SAI1_TXD6
B3
79
SAI1_MCLK
A3
80
SAI3_TXC
C4
3.3 SOMCON2501 Connector
Table 3-3SOM CON2501 Connector
CON2501
Pin#
Signal Name
i.Mx8
Pin #
i.MX8 Ball Name
CON2501
Pin#
Signal Name
i.Mx8
Pin #
i.MX8 Ball Name
1
ECSPI2_MOSI
E5
2
USB1_VBUS
D14
3
ECSPI2_MISO
B5
4
USB1_ID
C14
5
I2C3_SDA
E9
6
UART2_TXD
D6
7
I2C3_SCL
G8
8
UART2_RXD
B6
9
USB2_VBUS
D9
10
ECSPI2_SCLK
C5
11
USB2_ID
C9
12
ECSPI2_SS0
A5
13
PCIE2_NCLKREQ
F9
I2C4_SDA
14
UART4_TXD(URAT2_RTS)
D7
15
I2C2_SCL
G7
16
UART4_RXD (URAT2_CTS)
C6
17
I2C2_SDA
F7
18
UART1_TXD
A7
19
I2C1_SDA
E8
20
UART1_RXD
C7
21
I2C1_SCL
E7
22
GND .
23
GND
.
24
DSI_D3P
B15
25
DSI_CLKP
D16
26
DSI_D3M
A15
27
DSI_CLKM
C16
28
DSI_D1P
B16
29
DSI_D0P
B17
30
DSI_D1M
A16
31
DSI_D0M
A17
32
GND .
33
GND
.
34
CSI2_CLKP
B19
35
DSI_D2P
B18
36
CSI2_CLKM
A19
37
DSI_D2M
A18
38
GND .
39
GND
.
40
CSI2_D2P
B21
41
CSI2_D1P
B20
42
CSI2_D2M
A21
43
CSI2_D1M
A20
44
GND .
45
GND
.
46
CSI1_CLKP
B22
47
CSI2_D3P
D19
48
CSI1_CLKM
A22
49
CSI2_D3M
C19
50
GND .
51
GND
.
52
CSI1_D0P
B23
53
CSI2_D0P
D20
54
CSI1_D0M
A23
55
CSI2_D0M
C20
56
GND .
57
GND
.
58
CSI1_D3P
D21
59
CSI1_D1M
C22
60
CSI1_D3M
C21
61
CSI1_D1P
D22
62
GND .
63
GND
.
64
USB2_RXP
A8
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CSI1_D2M
B24
66
USB2_RXN
B8
67
CSI1_D2P
C23
68
USB2_TXP
A9
69
GND
.
70
USB2_TXN
B9
71
USB2_DP
A10
72
USB1_RXP
A12
73
USB2_DN
B10
74
USB1_RXN
B12
75
USB1_DP
A14
76
USB1_TXP
A13
77
USB1_DN
B14
78
USB1_TXN
B13
79
VDDIO_3V3 .
80
VDDIO_3V3 .
3.4 Carrier board Expansion Header
Expansion connector is a 40-pin header which contains I2Cs, UARTs, eCSPI, PWM, GPIOs
and power for user use.
UART interface support the following serial data transmit/receive protocols and
configurations:
• 7- or 8-bit data words, 1 or 2 stop bits, programmable parity (even, odd or none)
• Programmable baud rates up to 4 Mbps. This is a higher max baud rate relative to
the 1.875 MHz, which is stated by the TIA/EIA-232-F standard.
• 32-byte FIFO on Tx and 32 half-word FIFO on Rx supporting auto-baud
UART4_TXD, UART4_RXD can be configured as UART2_RTS and UART2_CTS respectively.
I2C interfaces which provide serial interface for external devices. Data rates of up to 400
kbps are supported
WB10-AT SOM supports one full-duplex Enhanced Configurable Serial Peripheral
Interface (ECSPI). The ECSPI contain a 64x32 receive buffer and a 64x32 transmit buffer.
The ECSPI power domain is VDDIO_3V3.
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The pulse-width modulator (PWM) has a 16-bit counter and is optimized to generate
sound from stored sample audio images and it can also generate tones. It uses16-bit
resolution and a 4x16 data FIFO.
WB10-AT SOM has 15 dedicate pins for GPIO purpose, moreover the pins are not used in
other function (SDIO, SPI, UART, SAI) can be configured as GPIO as well. The power
domain of WB10-AT SOM IOs is VDDIO_3V3.
Figure 3-1 Pin assignments of expansion connector
3.5 Power Signals
The 5V power is provided by J1902- a Micro USB connector that is dedicated for power
supply, no USB function available on this connector.
Power-On button and Reset button on the carrier board to turn the SOM.
Figure3-2Carrier Board Power Signals
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3.6 HDMI, RJ45, USB and Trace Log
One HDMI 2.0a, one USB 3.0, one USB 2.0 OTG are available on WB10-AT SOM
development kid. Moreover, one trace log port (through a micro USB connector) also
provided for developing purpose.
Figure3-3 HDMI, RJ45, USB and Trace Log connector
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3.7 DSI Connector
WB10-AT SOM provides a 4-lanes MIPI display interface operating up to 1080p60
resolution DSI connector is from Molex 52559-2234. For the pin definitions, refer to
figure 3-4.
Figure3-4 DSI pin definition
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3.8 MIPI CSI connector
WB10-AT IO board provides two MIPI CSI camera connectors. One is 4-lanes CSI
interface, and the other is 2-lanes.
The CSI interface operates up to a maximum bit rate of 1.5 Gbps per lane and provides
4K@30fps capability for the 4 lanes.
Refer to Figure 3-5 and Figure 3-6 for CSI pin definitions. CSI1 connector part number is
52559-2234 from Molex, CSI2 connector part number is 52610-1533 from Molex.
Figure3-5 MIPI CSI1 Camera Signal Pins
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Figure3-5 MIPI CSI1 Camera Signal Pins
3.9 SD/MMC
Fully compatible with MMC command/response sets and Physical Layer as defined in
the Multimedia Card System Specification, v5.0/v4.4/v4.41/v4.4/v4.3/v4.2.
• Fully compatible with SD command/response sets and Physical Layer as defined in
the SD Memory Card Specifications v 3.0 including high-capacity SDXC cards up to 2
TB.
• Fully compatible with SDIO command/response sets and interrupt/Read-Wait mode
as defined in the SDIO Card Specification, Part E1, v. 3.0.
3.10 SAIs
The SAI interface provides a synchronous audio interface (SAI) that supports full duplex
serial interfaces with frame synchronization, such as I2S, AC97, TDM, and codec/DSP
interfaces.
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SAI2 is connected to the stereo CODEC, WM8960 in this design. WM8960 provides
stereo speaker output, stereo headset output and one MIC input.
Two 2-PIN headers next to earphone jack are the output of Left/Right speaker.
Headset L/R out and MIC in are connected to earphone jack. The pin definitions of SAI
and earphone jack are in Figure3-6 and Figure3-7.
Figure3-6 SAI Connector
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Figure 3-7 Earphone Pin definition
3.11 M.2 Connector
WB10-AT supports PCIe interface that is connected to M.2 connector from Amphenol
MDT420E01001 on bottom side of carrier board.
Pin definitions are shown in Figure3-8.
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Figure3-8 M.2 Connector
4 Reference Documents
1. i.MX 8M Family of Applications Processors Datasheet
2. i.MX 8M Family of Applications Processor Reference Manual
3. BD71837MWV Data sheet
4. Fn-Link 8274B Combo Wi-Fi Module Datasheet
5. LAN AR8035 Datasheet
6. WM8960 datasheet - Stereo CODEC with 1W Stereo Class D Speaker Drivers and
Headphone Drivers for Portable Audio Applications
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