PRELIMINARY
HSMMC CONTROLLER
S3C6400X RISC MICROPROCESSOR
27-64
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
CONTROL REGISTER 2
This register contains the SD Command Argument.
Register
Address
R/W
Description
Reset Value
CONTROL2_0
0x7C200080
R/W
Control register 2 (Channel 0)
0x0
CONTROL2_1
0x7C300080
R/W
Control register 2 (Channel 1)
0x0
CONTROL2_2
0x7C400080
R/W
Control register 2 (Channel 2)
0x0
Name
Bit
Description
Initial
Value
Reserved [31]
Reserved
0
CmdCnfmask [30]
Command Conflict Mask Enable
This bit can mask enable the Command Conflict Status (bit [1:0] of the
“ERROR INTERRUPT STATUS REGISTER”)
0=Mask Disable, 1=Mask Enable
0
CDInvRXD [29]
Card Detect signal inversion for RX_DAT[3]
0=Disable, 1=Enable
0
SelCardOut [28]
Card Removed Condition Selection
0= Card Removed condition is “Not Card Insert” State (When the transition
from “Card Inserted” state to “Debouncing” state in Figure 27-2)
1= Card Removed state is “Card Out” State (When the transition from
“Debouncing state to “No Card” state in Figure 27-2)
0
FltClkSel [27:24]
Filter Clock (iFLTCLK) Selection
Filter Clock period = 2^(Flt 5) x iSDCLK period
0000 = 25 x iSDCLK, 0001 = 26 x iSDCLK … 1111 = 220 x iSDCLK
0
LvlDAT [23:16]
DAT line level
Bit[23]=DAT[7], BIT[22]=DAT[6], BIT[21]=DAT[5], BIT[20]=DAT[4],
Bit[19]=DAT[3], BIT[18]=DAT[2], BIT[17]=DAT[1], BIT[16]=DAT[0]
(Read Only)
Line
state
EnFBCLKT [15]
Feedback Clock Enable for Tx Data/Command Clock
‘0’=Disable, ‘1’=Enable
0
EnFBCLKR [14]
Feedback Clock Enable for Rx Data/Command Clock
‘0’=Disable, ‘1’=Enable
0
SDCDSel [13]
SD Card Detect Signal Selection
Card Detect Pin Level does not simply reflect SDCD# pin, but chooses from
SDCD, DAT[3], or CDTestlvl depending on CDSigSel and this field
(SDCDSel) values
‘0’=nSDCD is used for SD Card Detect Signal
‘1’=DAT[3] is used for SD Card Detect Signal
0
CardSync [12]
SD Card Detect Sync Support
This field is used to enable output CMD and DAT referencing SD Bus
0