Texas Instruments TMS320DM355 Manual Do Utilizador
www.ti.com
PRODUCT PREVIEW
2.4.6
Multi-Media Card/Secure Digital (MMC/SD) Interfaces
TMS320DM355
Digital Media System-on-Chip (DMSoC)
Digital Media System-on-Chip (DMSoC)
SPRS463A – SEPTEMBER 2007 – REVISED SEPTEMBER 2007
The DM355 includes two Multi-Media Card/Secure Digital card interfaces that are compatible with the
MMC/SD and SDIO protocol.
MMC/SD and SDIO protocol.
Table 2-12. MMC/SD Terminal Functions
TERMINAL
TYPE
(1)
OTHER
(2) (3)
DESCRIPTION
NAME
NO.
MMCSD0_
A15
I/O/Z
V
DD
MMCSD0: Clock
CLK
MMCSD0_
C14
I/O/Z
V
DD
MMCSD0: Command
CMD
MMCSD0_
B14
I/O/Z
V
DD
MMCSD0: DATA0
DATA0
MMCSD0_
D14
I/O/Z
V
DD
MMCSD0: DATA1
DATA1
MMCSD0_
B13
I/O/Z
V
DD
MMCSD0: DATA2
DATA2
MMCSD0_
A14
I/O/Z
V
DD
MMCSD0: DATA3
DATA3
MMCSD1_
MMCSD1: Clock
CLK/
C15
I/O/Z
V
DD
GIO: GIO[024]
GIO024
MMCSD1_
MMCSD1: Command
CMD/
A17
I/O/Z
V
DD
GIO: GIO[023]
GIO023
MMCSD1_
DATA0/
DATA0/
MMCSD1: DATA0
GIO019/
A18
I/O/Z
V
DD
GIO: GIO[019]
UART2_T
UART2: Transmit data
XD
MMCSD1_
DATA1/
DATA1/
MMCSD1: DATA1
GIO020/
B15
I/O/Z
V
DD
GIO: GIO[020]
UART2_R
UART2: Receive data
XD
MMCSD1_
DATA2/
DATA2/
MMCSD1: DATA2
GIO021/
A16
I/O/Z
V
DD
GIO: GIO[021]
UART2_C
UART2: CTS
TS
MMCSD1_
DATA3/
DATA3/
MMCSD1: DATA3
GIO022/
B16
I/O/Z
V
DD
GIO: GIO[022]
UART2_R
UART2: RTS
TS
(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
28