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Download M3 32-bit MCU User Manual
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GD32F10x User Manual 0]) ACMD42 ACMD51 ac adtc is assigned to OCR[30]. [31:1] stuff bits R1 [0]set_cd [31:0] stuff bits R1 SET_CLR_CARD_D ETECT SEND_SCR Connect[1]/Disconnect[0] the 50K pull-up resistor on CD/DAT3 (pin 1) of the card. Reads the SD Configuration Register (SCR). Indicates to the card that the next CMD55 ac [31:16] RCA R1 [15:0] stuff bits APP_CMD command is an application specific command rather than a standard command. Used either to transfer a data block to the card or to get a data block from CMD56 adtc the [31:1] stuff bits. R1 [0]: RD/WR GEN_CMD card purpose/application for general specific command. The host sets RD/WR=1 for reading data from the card and sets to 0 for writing data to the card. [31]WR CMD60 adtc [23:18] Address R1(rea [7:2] Byte Count d)/R1b Other are (write) [15:0] Data Unit R1(rea Count d)/R1b bits RW_MULTIPLE_RE Read or write register in address GISTER range. RW_MULTIPLE_BL Read or write data block in address OCK range. reserved bits. [31]WR CMD61 adtc Other bits are (write) reserved bits Note: 1.ACMDx is Application-specific Commands for SD memory. 2. CMD60, CMD61 are Application-specific Commands for CE-ATA device. Table 23-12 I/O Mode Commands (class 9) Respo Cmd index type nse argument forma Abbreviation Description t Used to write and read 8 bit (register) [31:16] RCA [15:15] CMD39 ac write flag [14:8] data fields. The command addresses register register address [7:0] register data a card and a register and provides R4 FAST_IO the data for writing if the write flag is set. The R4 response contains data read from the addressed register if the write flag is cleared to 0. This 712
