Figure 7 - Panda Hdmi Interface Block Diagram - pandaboard OMAP4460 ES System Reference Manual

OMAP4460
HDMI_HPD/GPIO_63
HDMI_CEC/GPIO_64
HDMI_DDC_SCL/GPIO_65
HDMI_DDC_SDA/GPIO_66
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 OMAP4460 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).
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OMAP4460 Pandaboard ES
System Reference Manual
GPIO_41 O
O
GPIO_60
I
IO
O
IO
O
HDMI_CLOCKX
HDMI_CLOCKY O
HDMI_DATA0X O
HDMI_DATA0Y O
HDMI_DATA1X O
O
HDMI_DATA1Y
O
HDMI_DATA2X
O
HDMI_DATA2Y
Figure 7 – Panda HDMI Interface Block Diagram
TPD12S015A
(U5)
Revision 0.1
September 29, 2011
DOC-21054
DNI
R37
DNI
R36
HDMI Connector
Type A
(P2)
I 5Vdc
O
HPLG
IO CEC
I
SCL
IO SDA
I CLK-
IO CLK+
IO
DAT0-
IO
DAT0+
IO
DAT1-
IO
DAT1+
IO
DAT2-
IO DAT2+
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