DocID030906 Rev 2
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UM2271
Connectors
77
See
for possible DSI display configuration change.
Power output
-
+5v
23
24
SPI2_SCK
PB13
SPI clock
-
-
NC
25
26
SPI2_MOSIp
PB15
SPI data
SM3321 ground
-
BLGND
27
28
SPI_DCX
PB14
SPI
data/control
SM3321 ground
-
BLGND
29
30
NC
-
-
-
-
NC
31
32
RESERVED
-
-
-
-
NC
33
34
NC
-
-
-
-
NC
35
36
3V3
-
3V3 voltage
reference
-
-
NC
37
38
VDDIO
-
IOVDD
reference
-
-
NC
39
40
I2C1_SDA
PG13
Touch panel
I2C data
-
-
NC
41
42
NC
-
-
DSI_SWIRE
control output
PA8
DSI_SWIRE
43
44
I2C1_SCL
PB6
Touch panel
I2C clock
-
-
NC
45
46
NC
-
-
-
-
NC
47
48
NC
-
-
DSI tearing
effect input
PF11
TE
49
50
NC
-
-
-
-
NC
51
52
NC
-
-
DSI Backlight
control output
PB1
DSI_BL_CTRL 53
54
NC
-
-
-
-
NC
55
56
NC
-
-
DSI and Touch
panel Reset
output
MFX_
GPIO10
DSI_RESET
57
58
NC
-
-
-
-
NC
59
60
1V8
-
1.8V voltage
reference
General ground
-
GND
61
62
GND
-
General
ground
General ground
-
GND
63
64
GND
-
General
ground
Table 15. DSI display connector CN4 (continued)
Function
GPIO port
Signal name
CN6 pin
number
Signal name
GPIO port
Function
