TMS320DM8148_17 Datasheet, PDF (111/377 Pages) Texas Instruments – DaVinci Video Processors

TMS320DM8148, TMS320DM8147
www.ti.com
SPRS647E – MARCH 2011 – REVISED DECEMBER 2013
3.2.16 SD Signals (MMC/SD/SDIO)
Table 3-27. SD0 Terminal Functions
SIGNAL
NAME
NO.
TYPE ⁽¹⁾
OTHER ⁽²⁾
(3)
MUXED
DESCRIPTION
SD0_CLK/
GP0[1]
Y6
O
IPU
DVDD_SD
GP0
PINCNTL8
DSIS: 1
SD0 Clock output
SD0_CMD/
SD1_CMD/
GP0[2]
N1
I/O
IPU
DVDD_SD
SD1, GP0
PINCNTL9
DSIS: 1
SD0 Command input/output
SD0_DAT[0]/
SD1_DAT[4]/
GP0[3]
R7
I/O
IPU
DVDD_SD
SD1, GP0
PINCNTL10
DSIS: PIN
SD0 Data0 I/O. Functions as data bit 0 for 4-/8-bit SD mode
and single data bit for 1-bit SD mode.
SD0_DAT[1]_SDIRQ/
SD1_DAT[5]/
Y5
GP0[4]
I/O
IPU
DVDD_SD
SD1, GP0
PINCNTL11
DSIS: PIN
SD0 Data1 I/O. Functions as data bit 1 for 4-/8-bit SD mode
and as an IRQ input for 1-bit SD mode.
SD0_DAT[2]_SDRW/
SD1_DAT[6]/
Y3
GP0[5]
I/O
IPU
DVDD_SD
SD1, GP0
PINCNTL12
DSIS: PIN
SD0 Data2 I/O. Functions as data bit 2 for 4-/8-bit SD mode
and as a Read Wait input for 1-bit SD mode.
SD0_DAT[3]/
SD1_DAT[7]/
GP0[6]
Y4
I/O
IPU
DVDD_SD
SD1, GP0
PINCNTL13
DSIS: PIN
SD0 Data3 I/O. Functions as data bit 3 for 4-/8-bit SD mode.
MCA[1]_AXR[0]/
SD0_DAT[4]/
V4
I/O
IPU
DVDD
MCA[1]
PINCNTL35
DSIS: PIN
SD0 Data4 I/O. Functions as data bit 4 for 8-bit SD mode.
MCA[1]_AXR[1]/
SD0_DAT[5]/
T6
I/O
IPU
DVDD
MCA[1], SC0
PINCNTL36
DSIS: PIN
SD0 Data5 I/O. Functions as data bit 5 for 8-bit SD mode.
MCA[2]_AXR[0]/
SD0_DAT[6]/
UART5_RXD/
GP0[12]
N2
I/O
IPU
DVDD
MCA[2], UART5,
GP0
PINCNTL41
DSIS: PIN
SD0 Data6 I/O. Functions as data bit 6 for 8-bit SD mode.
MCA[2]_AXR[1]/
SD0_DAT[7]/
UART5_TXD/
GP0[13]
V6
I/O
IPU
DVDD
MCA[2], UART5,
GP0
PINCNTL42
DSIS: PIN
SD0 Data7 I/O. Functions as data bit 7 for 8-bit SD mode.
UART0_CTS/
UART4_RXD/
DCAN1_TX/
SPI[1]_SCS[3]/
SD0_SDCD
AE6
I
IPD
DVDD
UART0, UART4,
DCAN1, SPI[1]
PINCNTL72
DSIS: 1
SD0 Card Detect input
(1) I = Input, O = Output, Z = High impedance, S = Supply voltage, GND = Ground, A = Analog signal, MM = Multi Muxed, DSIS = De-
selected Input State
(2) IPD = Internal Pulldown Active, IPU = Internal Pullup Active, DIS = Internal Pull Disabled. This represents the default state of the
Internal Pull after Reset. For more detailed information on pullup/pulldown resistors and situations where external pullup/pulldown
resistors are required, see Section 4.5.1, Pullup/Pulldown Resistors and Section 7.3.17, Pin Behaviors at Reset.
(3) Specifies the operating I/O supply voltage for each signal
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