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HSMMC CONTROLLER
S3C2416X RISC MICROPROCESSOR
20-36
5.11 HOST CONTROL REGISTER
This register contains the SD Command Argument.
Register
Address
R/W
Description
Reset Value
HOSTCTL0 0X4AC00028
R/W Present
State Register (Channel 0)
0x0
HOSTCTL1 0X4A800028
R/W Present
State Register (Channel 1)
0x0
Name
Bit
Description
Initial Value
CDSIGSEL [7]
Reserved
This field should be fixed to LOW
0
CDTESTLVL [6]
Reserved
This field should be fixed to LOW
0
WIDE8 [5]
Reserved
This field should be fixed to LOW
0
DMASEL [4:3]
DMA Select
One of supported DMA modes can be selected. The host driver shall
check support of DMA modes by referring the
Capabilities
register.
Use of selected DMA is determined by
DMA Enable
of the
Transfer
Mode
register.
00 = SDMA is selected
01 = Reserved
10 = 32-bit Address ADMA2 is selected
11 = 64-bit Address ADMA2 is selected (Not supported)
0
ENHIGHSPD [2]
High Speed Enable
This bit is optional. Before setting this bit, the Host Driver shall check
the
High Speed Support
in the
Capabilities
register. If this bit is set
to 0 (default), the Host Controller outputs
CMD
line and
DAT
lines at
the falling edge of the SD Clock (up to 25MHz). If this bit is set to 1,
the Host Controller outputs
CMD
line and
DAT
lines at the rising edge
of the SD Clock (up to 50MHz).
1 = High Speed mode
0 = Normal Speed mode
0
WIDE4 [1]
Data Transfer Width
This bit selects the data width of the Host Controller. The Host Driver
shall set it to match the data width of the SD card.
1 = 4-bit mode
0 = 1-bit mode
0
ONLED [0]
Reserved
This field should be fixed to LOW
0
NOTE:
Card Detect Pin Level does not simply reflect SDCD# pin, but chooses from SDCD, DAT[3], or CDTestlvl depending
on CDSSigSel and SDCDSel values.
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...