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Revision 0.6
OMAP TM 4 PandaBoard System
Reference Manual
November 29, 2010
DOC-21010
GPIO
GPIO_43
GPIO_46
GPIO_48
GPIO_49
GPIO_52
GPIO_53
Dir.
O
O
O
I
I
I
Signal Name
WLAN_EN
BT_EN
FM_EN
BT_WAKEUP
FM_nIRQ
WLAN_nIRQ
Description
802.11b/g Enable
1 = Enabled, 0 = Disabled
Bluetooth Enable
1 = Enabled, 0 = Disabled
Unused GPIO
Bluetooth Wakeup
Unused GPIO
WLAN Interrupt Input
Table 8: WLAN/Bluetooth Module GPIO Definitions
2.14
Audio Interfaces
See Figure 14 for a block diagram of the audio connectivity on the PandaBoard. In this block diagram,
the signals with a red background in the box specifying their direction are analog I/Os while all others are
1.8V digital I/Os.
The OMAP4430 PandaBoard provides a stacked audio connector, which provides two 3.5mm audio jack
connections. The upper jack on this stacked connector (J16A in Figure 14 below), is connected to the
Headset Microphone Plus and Minus inputs of the TWL6040 Audio Companion IC. The lower jack on
this stacked connector (J16B in Figure 14 below) is connected to the Headset Left and Right outputs of
the TWL6040. The digital path for this audio back to the OMAP4430 processor is through the PDM
interface For expansion purposes, the left and right Hands-Free speaker outputs of the TWL6040 are
connected to the Expansion Connector J6 (see Paragraph 2.16 on page 42 for further details).
The PandaBoard also provisions a digital PCM path for Bluetooth audio from the LS Research module to
OMAP4430 via McBSP1.
Page 38 of 82
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UEVM4460G-02-01-00 PANDABOARD ES
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UHDM7218ECA PLATE END 71.86X17.87" GREY
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