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Revision 0.1
OMAP4460 Pandaboard ES
System Reference Manual
TWL6040
September 29, 2011
DOC-21054
Expansion
Connector
HFL_P
HFL_N
I
I
O
O
HFL_P
HFL_N
(J6)
OMAP4460
Upper Audio
Connnector
Passives/ESD
I
I
AFML
AFMR
PDMFRAME
IO
IO
ABE_PDM_FRAME/McBSP3_CLKX
(J16A)
PDMDL
PDMUL
I
O
O
I
ABE_PDM_DL_DATA/McBSP3_DX
ABE_PDM_UL_DATA/McBSP3_DR
Lower Audio
Connnector
(J16B)
Passives/ESD
R182
R181
O
O
HSR
HSL
PDMCLK
PDMCLKLB
O
I
I
O
ABE_CLKS/GPIO_118
ABE_PDM_LB_CLK/McBSP3_FSX
SDA
IO
IO
I2C1_SDA
R160*
O
AUXLP
SCL
I
O
I2C1_SCL
R164*
O
AUXRP
TiWi Module (U3)
I
I
O
O
FM_AUD_LIN
FM_AUD_RIN
FM_AUD_LOUT
FM_AUD_ROUT
AUD_CLK
AUD_OUT
AUD_IN
AUD_FSYNC
I
O
I
IO
R7
R4
R6
R11
O
I
O
IO
ABE_McBSP1_CLKX/GPIO_114
ABE_McBSP1_DR/GPIO_115
ABE_McBSP1_DX/GPIO_116
ABE_McBSP1_FSX/GPIO_117
FM_I2S_CLK
FM_I2S_DO
FM_I2S_DI
FM_I2S_FSYNC
I
O
I
IO
Figure 13 – Panda Audio Interface Block Diagram
2.16
USB Interfaces
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.
Page 39 of 82
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