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Upper Audio
Connnector
(J16A)
Lower Audio
Connnector
(J16B)
2.16
The Pandaboard ES utilizes two USB interfaces. The first is a DP/DM interface from the internal
transceiver within OMAP to the mini-AB connector J18. The second interface utilizes the 12-wire ULPI
interface (USBB1) to an onboard USB phy, whose DP/DM I/Os are interfaced to a Hub IC which
provides four downstream USB Host ports, and an Ethernet interface. Each of these interfaces will be
discussed in more detail in the following paragraphs.
2.16.1 USBOTG Interface
The Pandaboard ES uses the USB OTG transceiver within the OMAP4460 that is connected to an
industry-standard mini-AB connector (J18) as shown in Figure 14. The VBUS from the connector is
connected to the TWL6030 companion Power IC, which can provide up to 100mA in host mode (i.e.
when a client device is connected). The Pandaboard ES may only be used in host mode if a +5Vdc power
supply is installed in power jack P3.
Downloaded from
Elcodis.com
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OMAP4460 Pandaboard ES
System Reference Manual
I
HFL_P
Expansion
HFL_N
I
Connector
(J6)
Passives/ESD
Passives/ESD
R182
R181
R160*
R164*
TiWi Module (U3)
I
FM_AUD_LIN
I
FM_AUD_RIN
O
FM_AUD_LOUT
O
FM_AUD_ROUT
Figure 13 – Panda Audio Interface Block Diagram
USB Interfaces
TWL6040
O
HFL_P
O
HFL_N
I
AFML
PDMFRAME
IO
I
AFMR
I
PDMDL
PDMUL
O
PDMCLK
O
O
HSR
PDMCLKLB
I
O
HSL
SDA
IO
O
AUXLP
I
SCL
O
AUXRP
R7
AUD_CLK
I
AUD_OUT
O
I
R4
AUD_IN
IO
AUD_FSYNC
FM_I2S_CLK
I
O
FM_I2S_DO
FM_I2S_DI
I
FM_I2S_FSYNC
IO
Revision 0.1
September 29, 2011
DOC-21054
OMAP4460
IO
ABE_PDM_FRAME/McBSP3_CLKX
O
ABE_PDM_DL_DATA/McBSP3_DX
I
ABE_PDM_UL_DATA/McBSP3_DR
I
ABE_CLKS/GPIO_118
O
ABE_PDM_LB_CLK/McBSP3_FSX
IO
I2C1_SDA
O
I2C1_SCL
O
ABE_McBSP1_CLKX/GPIO_114
R6
I
ABE_McBSP1_DR/GPIO_115
O
ABE_McBSP1_DX/GPIO_116
R11
IO
ABE_McBSP1_FSX/GPIO_117
Page 39 of 82
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