ST STM320518-EVAL, User Manual

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Connector UM1537
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3.4 HDMI source connector CN4
Figure 9. HDMI source connector CN4
3.5 Daughterboard extension connector CN5 and CN6
Two 34-pin male headers CN5 and CN6 can be used to connect with the daughterboard or
standard wrapping board to the STM320518-EVAL evaluation board. All GPIOs are
available on it. The space between these two connectors and the position of the power,
GND and RESET pins is defined as a standard that allows to develop common
daughterboards for several evaluation boards.
The standard width between CN5 pin1 and CN6 pin1 is 2700 mils (68.58 mm). This
standard has been implemented on the majority of evaluation boards.
Each pin on CN5 and CN6 can be used by a daughterboard after disconnecting it from the
corresponding function block on the STM320518-EVAL evaluation board. Details are
provided in
Table 18 and Table 19 .
Table 16. HDMI sink connector CN3
Pin number Description Pin number Description
1,3,4,6,7,9,10,12
TMDS differential signal pair
connected to CN4
16 SDA (PF7)
13 CEC (PB10) 2,5,8,11,17 GND
14 NC 18 HDMI_5V_Sink
15 SCL (PF6) 19 HPD (PA11 through transistor)
Table 17. HDMI source connector CN4
Pin number Description Pin number Description
1,3,4,6,7,9,10,12
TMDS differential signal pair
connected to CN3
16 SDA (PB7)
13 CEC (PB10) 2,5,8,11,17 GND
14 NC 18
HDMI_5V_Source from power
switch U5
15 SCL (PB6) 19 HPD (PA8)
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