D i d o H a r d w a r e M a n u a l
v . 1 . 0 . 5
Pin name
Conn.
Pin
Function
Notes
modes and CIR
receive input in CIR
mode.
UART5_TXD
J2.120 Transmit Data
Also available as
alternative function
on pin J2.88.
Functions as CIR
transmit in CIR
mode.
UART5_RTSn
J1.93
Request To Send
Functions as transmit
data output in IrDA
modes
UART5_CTSn
J2.104 Clear To Send
Functions as SD
transceiver control
output in IrDA and
CIR modes.
7.8
MMC/SD channels
Three standard MMC/SD/SDIO interfaces are available on
DIDO module. The processor includes 3 MMC/SD/SDIO
Controllers which are compliant with MMC V4.3, Secure
Digital Part 1 Physical Layer Specification V2.00 and Secure
Digital Input Output (SDIO) V2.00 specifications. High capacity
SD cards (SDHC) are supported.
7.8.1
MMC/SD/SDIO0
MMC/SD0 can be configured as 1-bit or 4-bit mode. When
using this channel, MMC/SD0 can't be configured as 8-bit
mode.
The following table describes the interface signals:
Pin name
Conn.
Pin
Function
Notes
SD0_CLK
J1.124 Clock output
SD0_CMD
J1.130 Command output
SD0_DAT[0]
J1.127 Data bit 0
Functions as single
data bit for 1-bit SD
mode.
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