S3C2416X RISC MICROPROCESSOR
HSMMC CONTROLLER
20-37
5.12 POWER CONTROL REGISTER
This register contains the SD Command Argument.
Register
Address
R/W
Description
Reset Value
PWRCON0 0X4AC00029 R/W
Present
State Register (Channel 0)
0x0
PWRCON1 0X4A800029 R/W
Present
State Register (Channel 1)
0x0
Name
Bit
Description
Initial Value
[7:4]
Reserved
SELPWRLVL [3:1]
SD Bus Voltage Select
By setting these bits, the Host Driver selects the voltage level for the
SD card. Before setting this register, the Host Driver shall check the
Voltage Support
bits in the
Capabilities
register. If an unsupported
voltage is selected, the Host System shall not supply SD Bus voltage.
111b = 3.3V (Typ.)
110b = 3.0V (Typ.)
101b = 1.8V (Typ.)
100b
−
000b = Reserved
0
PWRON [0]
SD Bus Power
Before setting this bit, the SD Host Driver shall set
SD Bus Voltage
Select
. If the Host Controller detects the No Card state, this bit shall
be cleared.
If this bit is cleared, the Host Controller shall immediately stop driving
CMD
and
DAT[3:0]
(tri-state) and drive
SDCLK
to low level.
1 = Power on
0 = Power off
0
Содержание S3C2416
Страница 33: ...S3C2416X RISC MICROPROCESSOR PRODUCT OVERVIEW 1 5 3 BLOCK DIAGRAM Figure 1 1 S3C2416X Block Diagram ...
Страница 38: ...PRODUCT OVERVIEW S3C2416X RISC MICROPROCESSOR 1 10 153 AIN 1 U14 195 EINT 10 GPG2 K15 237 SDATA 14 C18 ...
Страница 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Страница 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Страница 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Страница 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Страница 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Страница 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Страница 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Страница 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Страница 455: ...S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER 20 9 4 9 SD COMMAND ISSUE SEQUENCE Figure 20 9 Timeout Setting Sequence ...
Страница 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Страница 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Страница 653: ...S3C2416X RISC MICROPROCESSOR ELECTRICAL DATA 26 15 Figure 26 14 SDRAM READ WRITE Timing Trp 2 Trcd 2 Tcl 2 DW 16 bit ...
Страница 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...
Страница 672: ...MECHANICAL DATA S3C2416X RISC MICROPROCESSOR 30 2 Figure 27 2 330 FBGA 1414 Package Dimension 2 Bottom View ...