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