UM2048
User manual
DSI to HDMI adapter board for STM32 Development Tools
Introduction
The DSI to HDMI adapter board (order code B-LCDAD-HDMI1) provides DSI input port and
HDMI output port. It can be used on STM32 evaluation boards or discovery boards, to
demonstrate video solutions based on STM32 MCUs.
Thanks to the bridge chip ADV7533, the DSI to HDMI adapter board can support
2-, 3- or 4-lanes DSI video input data, S/PDIF, 2-channels I2S audio input data and HDMI
v1.3 output port.
The B-LCDAD-HDMI1 adapter board has the following features:
• Up to four lanes of MIPI/DSI data, each running up to 800 Mbps (video mode only: NonBurst mode with synchronization pulse)
• 2-channels I2S transmit stereo up to 192 kHz sampling rate
• S/PDIF carries stereo LPCM audio or compressed audio
• HDMI output connector:
– Support of video resolutions with pixel clocks up to 80 MHz
– Support of CEC signals, 5 V-tolerant I2C and HPD I/Os
– Common-mode filters with ESD protection
Figure 1. DSI to HDMI adapter board
Back side
Front side
Pictures not contractual
June 2016
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1
Contents
UM2048
Contents
1
Hardware Layout and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Video and audio input connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
Video input (MIPI DSI) signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Audio input (S/PDIF & I2S) signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3
Control signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
HDMI output connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4
CEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Video and audio input connector CN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
HDMI output connector CN2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CEC source connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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List of figures
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List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
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DSI to HDMI adapter board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Hardware Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
DSI to HDMI adapter board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Board schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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Hardware Layout and configuration
DSI to HDMI adapter board is designed around the ADV7533. Figure 2 illustrates the
connections on DSI to HDMI adapter board and Figure 3 will help to locate these features
on the actual evaluation board.
Figure 2. Hardware Block Diagram
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1
Hardware Layout and configuration
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Figure 3. DSI to HDMI adapter board layout
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Video and audio input connector
2
UM2048
Video and audio input connector
A male high speed connector CN1 on bottom side is used to implement DSI to HDMI
adapter board on mother board. The 4-lane DSI video signals, audio (I2S or S/PDIF)
signals, CEC signals and control signals (I2C bus, reset and interrupt signals) are on this
connector.
Table 1 shows the pinout of CN1.
Table 1. Video and audio input connector CN1
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Pin number
Description
Interface
Pin number
Description
Interface
1
GND
-
2
-
-
3
DSI_CK_P
DSI
4
INT
Interrupt output
5
DSI_CK_N
DSI
6
GND
-
7
GND
-
8
DSI_D2_P
DSI
9
DSI_D0_P
DSI
10
DSI_D2_N
DSI
11
DSI_D0_N
DSI
12
GND
-
13
GND
-
14
DSI_D3_P
DSI
15
DSI_D1_P
DSI
16
DSI_D3_N
DSI
17
DSI_D1_N
DSI
18
-
-
19
GND
-
20
-
-
21
+5 V
-
22
-
-
23
+5 V
-
24
-
-
25
-
-
26
-
-
27
-
-
28
-
-
29
-
-
30
-
-
31
-
-
32
-
-
33
-
-
34
-
-
35
SCLK/MCLK
Audio
36
3.3 V
37
LRCLK
Audio
38
-
-
39
I2S/SPDIF
Audio
40
I2C_SDA
I2C
41
-
-
42
-
-
43
-
-
44
I2C_SCL
I2C
45
CEC_CLK
CEC
46
-
-
47
CEC
CEC
48
-
-
49
-
-
50
-
-
51
-
-
52
-
-
53
-
-
54
-
-
55
-
-
56
-
-
57
RESET
Reset input
58
-
-
59
-
-
60
1.8V
-
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2.1
Video and audio input connector
Video input (MIPI DSI) signals
4-lane MIPI DSI signals are connected on DSI to HDMI adapter board as video input
interface. This board supports 2-, 3- or 4-lane DSI video input data and each running up to
800 Mbps.
DSI interface is compatible with DPHY V.0.90 and DSI V.1.02 and Supports inputs of 16-bit
RGB 4:4:4, 24-bit RGB 4:4:4 and 30-bit RGB 4:4:4.
2.2
Audio input (S/PDIF & I2S) signals
S/PDIF or I2S audio input interface is implemented on CN1. DSI to HDMI adapter board
supports standard S/PDIF for stereo LPCM or compressed audio up to 192 kHz, or 2channel uncompressed LPCM I2S audio up to 192 kHz.
2.3
Control signals
I2C bus on CN1 serves as the serial port data I/O slave for register access. The default
address is 0x7A.
Reset signal from mother board is connected to Power Down (PD) pin on ADV7533. It is
internal pulled up by ADV7533.
Interrupt output signal is for mother board and it is pull up on DSI to HDMI adapter board.
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HDMI output connector
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HDMI output connector
A standard HDMI output connector CN2 is implemented on DSI to HDMI adapter board. The
output supports all video and graphics resolutions from 480i to 1080p at 30 Hz. Thanks to
common-mode filter with ESD protection parts, HDMI output connector is complies with IEC
61000-4-2 level 4 standard.
On CN2, I2C master for EDID reading and HDCP operations reports HDMI events through
interrupts and registers. Hot Plug Detect Signal (HPD) Indicates to the interface whether the
receiver is connected.
Table 2 shows the pinout of CN2.
Table 2. HDMI output connector CN2
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Pin number
Description
Pin number
Description
1
TMDS D2+
11
GND
2
GND
12
TMDS Clock-
3
TMDS D2-
13
CEC
4
TMDS D1+
14
NC
5
GND
15
DDC_I2C_SCL
6
TMDS D1-
16
DDC_I2C_SDA
7
TMDS D0+
17
GND
8
GND
18
HDMI_5V_Source from
power switch U5
9
TMDS D0-
19
HPD
10
TMDS Clock+
-
-
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4
CEC
CEC
There are two sources of CEC signal on HDMI output connector on DSI to HDMI adapter
board. One source (Default setting) is from ADV7533 and its clock is from X1 on the board.
The other source is from CN1 and mother board. Some PCB reworks should be done when
using the second source shown in Table 3.
Table 3. CEC source connection
CEC source
Mount
Remove
ADV7533 (Default)
SB10
SB5
CN1 (Mother board)
SB5
SB10
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Schematic
Schematic
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5
Figure 4. Board schematic
120[N/A]
L5
L6
L4
SB1
Closed
V1P2
C2
10uF
C3
C4
C5
10uH
R10
Closed
10uH
SB3
10uH
2
4
1
C1
10uF
Vout
Tab
10uH
Vin
10uH
3
+1V8
10uH
U1
LD1117S18TR
+3V3
+3V3
L3
+1V8
L2
V1P2
Open
L1
+1V8_CON
SB2
C6
C7
C8
10uF
10uF
10uF
10uF
10uF
10uF
C9 100nF C10 100nF
C11 100nF C12 100nF C13 100nF
C14 100nF
C15 100nF
C16 100nF
Source
C21
100nF
61
62
63
64
QTH-030-02-F-D-A
Connector for motherboard
61
62
63
64
SCLK/MCLK
LRCLK
I2S/SPDIF
R_EXT
TMDS_Data2+
TMDS_Data2-
A3
A4
TMDS_Data1+
TMDS_Data1-
6
7
8
9
10
TMDS_Data0+
TMDS_Data0-
A7
B7
6
7
8
9
10
TMDS_Clock+
TMDS_Clock-
B2
B3
B5
B6
C7
E1
E7
F1
F7
CEC
DDC_SCL
DDC_SDA
ECMF04-4HSWM10
HPD
+5V
SB6
Closed
R3
R4
2K[N/A] 2K[N/A]
HDMI_5V_Source
+3V3
R6
10K
SB9
Open
U5
3
1
Open
+1V8
5
4
3
2
1
D2D2D2+
D2+
GND GND
D1D1D1+
D1+
CN2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
U4
A5
A6
SB7
R5
2K[N/A]
21
20
U3
ECMF04-4HSWM10
5
D2D24
D2+
D2+
3
GND GND
2
D1D11
D1+
D1+
HD119F-3A09200
GND
GND
GND
GND
GND
GND
GND
GND
GND
CEC_CLK
CEC
DRx1+
DRx1-
A1
A2
22
C6
PVDD
AVDD
A2VDD
DVDD
DVDD
DVDD
B4
B1
TxC+
TxC-
D7
D6
R12 R13 R2
10K 10K 1K[1%]
DRx0+
DRx0-
DDC_SDA
DDC_SCL
C5
Tx0+
Tx0-
D2
D1
C2
D3
C1
DRxC+
DRxC-
HPD
G4
F4
Tx1+
Tx1-
INT
G3
F3
Differential pairs 100ohm
Tx2+
Tx2-
DRx3+
DRx3-
C4
G2
F2
D5
G6
F6
DRx2+
DRx2-
INT
G5
F5
V3P3
D4
E3
1
HSSI_CLK_P
3
HSSI_CLK_N
5
7
HSSI_D0_P
9
HSSI_D0_N
11
13
HSSI_D1_P
15
HSSI_D1_N
17
19
21
+5V
23
C18
25
100nF
27
29
31
33
35 SCLK
37 LRCLK
39 I2S
41
43
45 CEC_CLK SB4
Open
Open
47 CEC_IO SB5
49
51
53
55
SB8
Closed
57 RST
59
SCL
SDA
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
V1P2
V1P2
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
E6
E5
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2
4
6
HSSI_D2_P
8
HSSI_D2_N
10
12
HSSI_D3_P
14
16
HSSI_D3_N
18
Differential pairs 100ohm 20
22
24
+3V3
26
C19
28
100nF
30
32
34
36
38
I2C_SDA 40
42
I2C_SCL 44
46
48
50
52
54
56
+1V8_CON 58
60
PD
Differential pairs 100ohm
C3
R1
2K
INT
U2
ADV7533BCBZ-RL
I2C address:0x7A
G1
E4
E2
C17 100nF
CN1
G7
+3V3
FAULT GND
OUT
IN
EN
2
5
4
+5V
C20
STMPS2141STR@54
4.7uF
C22
100nF
R7
27K
D1
U6
R8
[N/A]
R9
[N/A]
SB11
Closed
SB10
Closed
A3
B3
BAR18
A2
C3
X1
3
2
H1
OUT VDD
GND
EN
4
1
SB12
SB13
R11
10K
NZ2520SB-12.000000M-NSA3412D
C25
100nF
SCL
SDA
5V
RPU
CEC
HPD
GND
GND
A1
C1
B2
C2
+5V
C23
C24
100nF 100nF
HDMI05-CL01F3
Closed
+1V8
Open
+3V3
Note: Text in italic placed on a wire doesn¡¯t correspond to net name. It just helps to
identify rapidly MCU IO related to this wire.
Title: DSI to HDMI adapter
Project: HDMI daugher board
Size: A4
Reference: MB1232
Date: 5/20/2016
Revision: A.1
Sheet: 1 of 1
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Revision history
Revision history
Table 4. Document revision history
Date
Revision
09-Jun-2016
1
Changes
Initial release.
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