TMS320DM335_1 Datasheet, PDF (31/158 Pages) Texas Instruments – Digital Media System-on-Chip (DMSoC)

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TERMINAL
NAME
NO.
MMCSD1_DA
TA0/
GIO019/
A18
UART2_TXD
TMS320DM335
Digital Media System-on-Chip (DMSoC)
SPRS528A – JULY 2008 – REVISED AUGUST 2008
Table 2-15. UART Terminal Functions (continued)
TYPE⁽¹⁾ OTHER⁽²⁾⁽³⁾ DESCRIPTION
I/O/Z
MMCSD1: DATA0
V_DD
GIO: GIO019
UART2: TXD
2.4.10 I²C Interface
The DM335 includes an I²C two-wire serial interface for control of external peripherals. This interface is
multiplexed with GIO signals.
Table 2-16. I²C Terminal Functions
TERMINAL
NAME
NO.
TYPE ⁽¹⁾
OTHER ^{(2) (3)}
DESCRIPTION
I2C_SDA/
GIO015
R13
I/O/Z
V_DD
I2C: Serial data
GIO: GIO015
I2C_SCL/
GIO014
R14
I/O/Z
V_DD
I2C: Serial clock
GIO: GIO014
(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 Section 5.3, Power Supplies for more detail.
(3) PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
2.4.11 Serial Interface
The DM335 includes three independent serial ports. These interfaces are multiplexed with GIO and other
signals.
Table 2-17. SPI Terminal Functions
TERMINAL
NAME
NO.
SPI0_SCLK
C12
SPI0_SDENA[0]/
GIO103
B12
GIO007
SPI0_SDENA[1]
C17
SPI0_SDI/
GIO102
A12
SPI0_SDO
B11
SPI1_SCLK/
GIO010
C13
SPI1_SDENA[0]/
GIO011
E13
SPI1_SDI/
GIO009/
A13
SPI1_SDENA[1]
SPI1_SDO/
GIO008
E12
TYPE⁽¹⁾ OTHER⁽²⁾⁽³⁾ DESCRIPTION
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
I/O/Z
V_DD
SPI0: Clock
V_DD
SPI0: Chip select 0
GIO: GIO[103]
V_DD
GIO: GIO[007]
SPI0: Chip select 1
V_DD
SPI0: Data in
GIO: GIO[102]
V_DD
SPI0: Data out
V_DD
SPI1: Clock
GIO: GIO[010]
SPI1: Chip select 0
V_DD
GIO: GIO[011] - Active low during MMC/SD boot (can be used as
MMC/SD power control)
SPI1: Data in or
V_DD
SPI1: Chip select 1
GIO: GIO[09]
V_DD
SPI1: Data out
GIO: GIO[008]
(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 Section 5.3, Power Supplies for more detail.
(3) PD = pull-down, PU = pull-up. (To pull up a signal to the opposite supply rail, a 1 kΩ resistor should be used.)
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