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2.4.5GPIO
TMS320DM355
DigitalMediaSystem-on-Chip(DMSoC)
SPRS463A–SEPTEMBER2007–REVISEDSEPTEMBER2007
TheGeneralPurposeI/OsignalsprovidegenericI/Otoexternaldevices.MostoftheGIOsignalsare
multiplexedwithotherfunctions.
Table2-11.GPIOTerminalFunctions
TERMINAL
TYPE
(1)
OTHER
(2)(3)
DESCRIPTION
NAMENO.
GIO:GIO[000]ActivelowduringMMC/SDboot(canbeusedasMMC/SDpower
GIO000C16I/O/ZV
DD
control).
CanbeusedasexternalclockinputforTimer3.
GIO001E14I/O/ZV
DD
GIO:GIO[001]CanbeusedasexternalclockinputforTimer3.
GIO002F15I/O/ZV
DD
GIO:GIO[002]CanbeusedasexternalclockinputforTimer3.
GIO003G15I/O/ZV
DD
GIO:GIO[003]CanbeusedasexternalclockinputforTimer3.
GIO004B17I/O/ZV
DD
GIO:GIO[004]
GIO005D15I/O/ZV
DD
GIO:GIO[005]
GIO006B18I/O/ZV
DD
GIO:GIO[006]
GIO007/
GIO:GIO[007]
SPI0_SDEC17I/O/ZV
DD
SPI0:ChipSelect1
NA[1]
SPI1_SD
SPI1:DataOut
O/E12I/O/ZV
DD
GIO:GIO[008]
GIO008
SPI1_SDI
/GIO009/
A13I/O/ZV
DD
SPI1:DataIn-OR-SPI1:ChipSelect1GIO:GIO[009]
SPI1_SDE
NA[1]
SPI1_SCL
SPI1:ClockGIO:
K/C13I/O/ZV
DD
GIO[010]
GIO010
SPI1_SDE
SPI1:ChipSelect0
NA[0]/E13I/O/ZV
DD
GIO:GIO[011]
GIO011
UART1_T
UART1:TransmitData
XD/R17I/O/ZV
DD
GIO:GIO[012]
GIO012
UART1_R
UART1:ReceiveData
XD/R15I/O/ZV
DD
GIO:GIO[013]
GIO013
I2C_SCL/I2C:SerialClockGIO:
R14I/O/ZV
DD
GIO014GIO[014]
I2C_SDA/I2C:SerialData
R13I/O/ZV
DD
GIO015GIO:GIO[015]
CLKOUT3CLKOUT:OutputClock3
C11I/O/ZV
DD
/GIO016GIO:GIO[016]
CLKOUT2CLKOUT:OutputClock2
A11I/O/ZV
DD
/GIO017GIO:GIO[017]
CLKOUT1CLKOUT:OutputClock1
D12I/O/ZV
DD
/GIO018GIO:GIO[018]
MMCSD1
_DATA0/MMCSD1:DATA0
GIO019/A18I/O/ZV
DD
GIO:GIO[019]
UART2_TUART2:TransmitData
XD
(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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