Sd/Mmc Connector; Figure 5 - Panda Uart3/Rs-232 Block Diagram - pandaboard OMAP 4 Series System Reference Manual

This port requires the use of a 9-pin D-sub Male to Female null-modem cable.
UART3_CTS_RCTX/GPIO_141
UART3_RTS_SD/GPIO_142
UART3_RX_IRRX/GPIO_143
UART3_TX_IRTX/GPIO_144
2.10
The OMAP4430 PandaBoard supports removable memory storage via onboard SD/MMC card cage. It is
an eight-bit card cage that supports 1.8V or 3.0V cards. Card detect functionality is supported via the
TWL6030 power companion IC. See Figure 6 for a block diagram of the interface signaling to the card
cage. The resistors shown in Figure 6 below are 33 ohm series termination resistors.
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OMAP
•
PARITY: none
•
STOP: 1bit
• FLOW CONTROL: none
TXS0104EZXUR
I
O
O
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Figure 5 – Panda UART3/RS-232 Block Diagram

SD/MMC Connector

TM
4 PandaBoard System
Reference Manual
(U21)
A1
B1 I O
A2
B2 O I
A3
B3 I O
A4
B4 O I
Revision 0.4
September 22, 2010
DOC-21010
ROUT2
RIN2 I 7
DIN2 DOUT2 O 8
ROUT1 RIN1 I 3
DIN1
DOUT1 O 2
4
6
Page 27 of 83
CTS
RTS
RXD
TXD
DTR
DSR