APPOTECH CW6632B - Page 101

12 SD Card Host Controller (SDC) 95
CW6632B Bluetooth 3.0 Audio Player SOC Version 1.0.0
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DKST: Data operation kicks start bits
00 = No operation
01 = Receive data
10 = Send data, without check busy
11 = Send data, with check busy
DW4: Data bus width
0 = 1-bit mode
1 = 4-bit mode
SDCKE: SD clock out when no command/data is sending
0 = Disable
1 = Keep clocking out
SDE: SD host controller enable bit
0 = Disabled
1 = Enabled
Register 12-2 SDCON1 – SD host control register 1
Position
7
6
5
4
3
2
1
0
Name
CIE
DIE
CPND
DPND
CPCLR
DPCLR
8CKE
ORISE
Default
0
0
0
0
0
0
0
0
Access
R/W
R/W
RO
RO
WO
WO
R/W
R/W
CIE: Command interrupt enable bit
0 = Disable
1 = Enable
DIE: Data interrupt enable bit
0 = Disable
1 = Enable
CPND: Command interrupts pending flag
0 = Inactive
1 = Interrupt pending
DPND: Data interrupt pending flag
0 = Inactive
1 = Interrupt pending
CPCLR: Command interrupts pending clear bit
0 = Inactive
1 = Clear pending
DPCLR: Data interrupt pending clear bit
0 = Inactive
1 = Clear pending
8CKE: Send eight SD clocks after command or data
0 = Disable