Samsung YP-P10 User Manual download pdf (Page 472)

100

101

S3C2440A RISC MICROPROCESSOR MMC/SD/SDIO CONTROLLER

19-9

SDI Data Control Register (SDIDatCon)

SDIDatCon 0x5A00002C R/W SDI data control register 0x0

SDIDatCon Bit Description Initial Value

Reserved [31:25] – –

Burst4 enable

(Burst4)

[24] Enable Burst4 mode in DMA mode. This bit should be set only

when Data Size is word.

0 = Disable, 1 = Burst4 enable

Data Size

(DataSize)

[23:22] Indicates the size of the transfer with FIFO, which is typically

byte, halfword or word.

00 = Byte transfer, 01 = Halfword transfer

10 = Word transfer, 11 = Reserved

SDIO Interrupt

Period Type

(PrdType)

[21] Determines whether SDIO Interrupt period is 2 cycle or extend

more cycle when data block last is transferred (for SDIO).

0 = Exactly 2 cycle, 1 = More cycle (likely single

block)

Transmit After

Response (TARSP)

[20] Determines when data transmit start after response receive or

not

0 = Directly after DatMode set,

1 = After response receive (assume DatMode sets to 2’b11)

Receive After

Command

(RACMD)

[19] Determines when data receive start after command sent or not

0 = Directly after DatMode set,

1 = After command sent (assume DatMode sets to 2’b10)

Busy After

Command

(BACMD)

[18] Determines when busy receive start after command sent or not

0 = Directly after DatMode set,

1 = After command sent (assume DatMode sets to 2’b01)

Block mode

(BlkMode)

[17] Data transfer mode

0 = Stream data transfer, 1 = Block data transfer

Wide bus enable

(WideBus)

[16] Determines enable wide bus mode

0 = Standard bus mode(only SDIDAT[0] used),

1 = Wide bus mode(SDIDAT[3:0] used)

DMA Enable

(EnDMA)

[15] Enable DMA

0 = Disable(polling), 1 = Dma enable

When DMA operation is completed, this bit should be disabled.

Data Transfer

Start(DTST)

[14] Determines whether data transfer start or not. . This bit is auto-

matically cleared.

0 = Data ready, 1 = Data start

Data Transfer Mode

(DatMode)

[13:12] Determines which direction of data transfer

00 = No operation, 01 = Only busy check mode

10 = Data receive mode, 11 = Data transmit mode

BlkNum [11:0] Block Number (0~4095), don’t care when stream mode 0x000

NOTE: If you want one of TARSP, RACMD, BACMD bits(SDIDatCon[20:18]) to “1”, you need to write on SDIDatCon register

ahead of on SDICmdCon register.(always need for SDIO)

1 2 ... 467 468 469 470 471 472 473 474 475 476 477 ... 595 596

Comments to this Manuals

No comments

Samsung YP-P10 User Manual Page 472

Comments to this Manuals

Related products and manuals for MP3/MP4 players Samsung YP-P10