Texas Instruments TMS320DM355 Manual Do Utilizador
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PRODUCT PREVIEW
2.4.5
GPIO
TMS320DM355
Digital Media System-on-Chip (DMSoC)
Digital Media System-on-Chip (DMSoC)
SPRS463A – SEPTEMBER 2007 – REVISED SEPTEMBER 2007
The General Purpose I/O signals provide generic I/O to external devices. Most of the GIO signals are
multiplexed with other functions.
multiplexed with other functions.
Table 2-11. GPIO Terminal Functions
TERMINAL
TYPE
(1)
OTHER
(2) (3)
DESCRIPTION
NAME
NO.
GIO: GIO[000] Active low during MMC/SD boot (can be used as MMC/SD power
GIO000
C16
I/O/Z
V
DD
control).
Can be used as external clock input for Timer 3.
Can be used as external clock input for Timer 3.
GIO001
E14
I/O/Z
V
DD
GIO: GIO[001] Can be used as external clock input for Timer 3.
GIO002
F15
I/O/Z
V
DD
GIO: GIO[002] Can be used as external clock input for Timer 3.
GIO003
G15
I/O/Z
V
DD
GIO: GIO[003] Can be used as external clock input for Timer 3.
GIO004
B17
I/O/Z
V
DD
GIO: GIO[004]
GIO005
D15
I/O/Z
V
DD
GIO: GIO[005]
GIO006
B18
I/O/Z
V
DD
GIO: GIO[006]
GIO007 /
GIO: GIO[007]
SPI0_SDE
C17
I/O/Z
V
DD
SPI0: Chip Select 1
NA[1]
SPI1_SD
SPI1: Data Out
O /
E12
I/O/Z
V
DD
GIO: GIO[008]
GIO008
SPI1_SDI
/ GIO009 /
/ GIO009 /
A13
I/O/Z
V
DD
SPI1: Data In -OR- SPI1: Chip Select 1 GIO: GIO[009]
SPI1_SDE
NA[1]
NA[1]
SPI1_SCL
SPI1: Clock GIO:
K /
C13
I/O/Z
V
DD
GIO[010]
GIO010
SPI1_SDE
SPI1: Chip Select 0
NA[0] /
E13
I/O/Z
V
DD
GIO: GIO[011]
GIO011
UART1_T
UART1: Transmit Data
XD /
R17
I/O/Z
V
DD
GIO: GIO[012]
GIO012
UART1_R
UART1: Receive Data
XD /
R15
I/O/Z
V
DD
GIO: GIO[013]
GIO013
I2C_SCL /
I2C: Serial Clock GIO:
R14
I/O/Z
V
DD
GIO014
GIO[014]
I2C_SDA /
I2C: Serial Data
R13
I/O/Z
V
DD
GIO015
GIO: GIO[015]
CLKOUT3
CLKOUT: Output Clock 3
C11
I/O/Z
V
DD
/ GIO016
GIO: GIO[016]
CLKOUT2
CLKOUT: Output Clock 2
A11
I/O/Z
V
DD
/ GIO017
GIO: GIO[017]
CLKOUT1
CLKOUT: Output Clock 1
D12
I/O/Z
V
DD
/ GIO018
GIO: GIO[018]
MMCSD1
_DATA0 /
_DATA0 /
MMCSD1: DATA0
GIO019 /
A18
I/O/Z
V
DD
GIO: GIO[019]
UART2_T
UART2: Transmit Data
XD
(1)
I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal.
(2)
Specifies the operating I/O supply voltage for each signal. See
, Power Supplies for more detail.
(3)
PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 k
Ω
resistor should be used.)
Device Overview
22