TMS320DM644x DMSoC Multimedia Card (MMC)/Secure Digital (SD) Card Controller User's Guide

www.ti.com
4.14 MMC Argument Register (MMCARGHL)
Registers
Note: Do not modify the MMC argument register (MMCARGHL) while it is being used for an
operation.
The MMC argument register (MMCARGHL) specifies the arguments to be sent with the command
specified in the MMC command register (MMCCMD). Writing to MMCCMD causes the MMC controller to
send a command; therefore, MMCARGHL must be configured before writing to MMCCMD. The content of
MMCARGHL is kept after the transfer to the shift register; however, modification to MMCARGHL is not
allowed during a sending operation. For the format of a command, see Figure 31 and Table 19 .
The MMC argument register (MMCARGHL) is shown in Figure 32 and described in Table 20 .
Figure 32. MMC Argument Register (MMCARGHL)
31 16
ARGH
R/W-0
15 0
ARGL
R/W-0
LEGEND: R/W = Read/Write; - n = value after reset
Table 20. MMC Argument Register (MMCARGHL) Field Descriptions
Bit Field Value Description
31-16 ARGH 0-FFFFh Argument, high part.
15-0 ARGL 0-FFFFh Argument, low part.
Multimedia Card (MMC)/Secure Digital (SD) Card Controller54 SPRUE30B – September 2006
Submit Documentation Feedback