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Revision 0.6
OMAP4430
OMAP TM 4 PandaBoard System
Reference Manual
TPD12S015
(U6)
November 29, 2010
DOC-21010
HDMI Connector
Type A
(P2)
GPIO_41
O
GPIO_60
HDMI_HPD/GPIO_63
HDMI_CEC/GPIO_64
HDMI_DDC_SCL/GPIO_65
HDMI_DDC_SDA/GPIO_66
HDMI_CLOCKX
HDMI_CLOCKY
HDMI_DATA0X
HDMI_DATA0Y
HDMI_DATA1X
HDMI_DATA1Y
HDMI_DATA2X
HDMI_DATA2Y
O
I
IO
O
IO
O
O
O
O
O
O
O
O
I
O
IO
I
IO
I
IO
IO
IO
IO
IO
IO
IO
5Vdc
HPLG
CEC
SCL
SDA
CLK-
CLK+
DAT0-
DAT0+
DAT1-
DAT1+
DAT2-
DAT2+
Figure 7 – Panda HDMI Interface Block Diagram
In addition to providing ESD protection on the signals coming from the connector, this device performs
voltage translation on the control signals in the HDMI interface (SCL, SDA, CEC, and HPD) from the
1.8V levels of the OMAP4430 to the 5V levels required by a TV set. It also implements a DC/DC boost
converter that operates from the “battery” voltage, VBAT, and outputs a 5Vdc output that is capable of
sourcing up to 55mA of current. See Table 4 for the GPIOs used on the HDMI interface and a description
of their function. The direction column in this table indicates whether this device is an output from
OMAP (O) or an input to OMAP (I).
Page 29 of 82
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