UM1537 datasheet(24/52 Pages) STMICROELECTRONICS

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Connector

UM1537

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Doc ID 023059 Rev 1

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

SDA (PF7)

CEC (PB10)

2,5,8,11,17

GND

HDMI_5V_Sink

SCL (PF6)

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

SDA (PB7)

CEC (PB10)

2,5,8,11,17

GND

HDMI_5V_Source from power

switch U5

SCL (PB6)

HPD (PA8)

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