OMAP4460 Pandaboard ES
System Reference Manual
Revision 0.1
September 29, 2011
DOC-21054
Page 33 of 82
See Table 5 for the GPIOs used on the Parallel display interface and a description of their function. This
table does not include the 28 parallel display signals (DATA[23:0], PCLK, VSYNC, HSYNC, and DE).
NOTE: no configuration changes are required to switch between usage of the onboard DVI connector or
an external display plugged into the display expansion connectors.
GPIO
Signal Name
Description
GPIO_0
H_GPIO_0/
TFP410_NPD
TFP410 Device Power down
(note: this GPIO goes through a voltage
translator to meet the 3.3V I/O requirement of the TFP410 on this pin)
1 = Normal Operation, 0 = Power Down
GPIO_122 DVI_MSEN
TFP410 Monitor Sense
0 = Powered on receiver sensed at the differential outputs
1 = No powered on receiver detected.
(note: this output from the
TFP410 is open-drain and has a pull-up to 1.8V, so it is connected
directly to OMAP)
Table 5: DVI-D Display GPIO Definitions
See Table 6 and Table 7 for the pinout of the display expansion connectors.
Pin#
Signal
I/O
Description
1
DCIN_JACK
PWR DC rail from the Main DC supply
2
DCIN_JACK
PWR DC rail from the Main DC supply
3
h_DSS_DAT1
I
LCD Pixel Data bit 1
4
h_DSS_DAT0
I
LCD Pixel Data bit 0
5
h_DSS_DAT3
I
LCD Pixel Data bit 3
6
h_DSS_DAT2
I
LCD Pixel Data bit 2
7
h_DSS_DAT5
I
LCD Pixel Data bit 5
8
h_DSS_DAT4
I
LCD Pixel Data bit 4
9
h_DSS_DAT12
I
LCD Pixel Data bit 12
10
h_DSS_DAT10
I
LCD Pixel Data bit 10
11
h_DSS_DAT23
I
LCD Pixel Data bit 23
12
h_DSS_DAT14
I
LCD Pixel Data bit 14
13
h_DSS_DAT19
I
LCD Pixel Data bit 19
14
h_DSS_DAT22
I
LCD Pixel Data bit 22
15
H_I2C2_SDA
I/O
I2C2 Serial Data
16
h_DSS_DAT11
I
LCD Pixel Data bit 11
17
h_DSS_VSYNC
I
LCD Vertical Sync Signal
18 H_DPM_EMU2 I DPM_EMU2/GPIO_13
19 GND
PWR Ground
bus
20 GND
PWR Ground
bus
Table 6: LCD Expansion Connector “A” Pin Definitions (J1)
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