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2.4.6Multi-MediaCard/SecureDigital(MMC/SD)Interfaces
TMS320DM355
DigitalMediaSystem-on-Chip(DMSoC)
SPRS463A–SEPTEMBER2007–REVISEDSEPTEMBER2007
TheDM355includestwoMulti-MediaCard/SecureDigitalcardinterfacesthatarecompatiblewiththe
MMC/SDandSDIOprotocol.
Table2-12.MMC/SDTerminalFunctions
TERMINAL
TYPE
(1)
OTHER
(2)(3)
DESCRIPTION
NAMENO.
MMCSD0_
A15I/O/ZV
DD
MMCSD0:Clock
CLK
MMCSD0_
C14I/O/ZV
DD
MMCSD0:Command
CMD
MMCSD0_
B14I/O/ZV
DD
MMCSD0:DATA0
DATA0
MMCSD0_
D14I/O/ZV
DD
MMCSD0:DATA1
DATA1
MMCSD0_
B13I/O/ZV
DD
MMCSD0:DATA2
DATA2
MMCSD0_
A14I/O/ZV
DD
MMCSD0:DATA3
DATA3
MMCSD1_
MMCSD1:Clock
CLK/C15I/O/ZV
DD
GIO:GIO[024]
GIO024
MMCSD1_
MMCSD1:Command
CMD/A17I/O/ZV
DD
GIO:GIO[023]
GIO023
MMCSD1_
DATA0/MMCSD1:DATA0
GIO019/A18I/O/ZV
DD
GIO:GIO[019]
UART2_TUART2:Transmitdata
XD
MMCSD1_
DATA1/MMCSD1:DATA1
GIO020/B15I/O/ZV
DD
GIO:GIO[020]
UART2_RUART2:Receivedata
XD
MMCSD1_
DATA2/MMCSD1:DATA2
GIO021/A16I/O/ZV
DD
GIO:GIO[021]
UART2_CUART2:CTS
TS
MMCSD1_
DATA3/MMCSD1:DATA3
GIO022/B16I/O/ZV
DD
GIO:GIO[022]
UART2_RUART2:RTS
TS
(1)I=Input,O=Output,Z=Highimpedance,S=Supplyvoltage,GND=Ground,A=Analogsignal.
(2)SpecifiestheoperatingI/Osupplyvoltageforeachsignal.SeeSection5.3,PowerSuppliesformoredetail.
(3)PD=pull-down,PU=pull-up.(Topullupasignaltotheoppositesupplyrail,a1kΩresistorshouldbeused.)
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