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NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 917 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
SD Host Global Control and Status Register (SDH_GCTL)
Register
Offset
R/W
Description
Reset Value
SDH_GCTL
0x800 R/W
SD Host Global Control and Status Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
7
6
5
4
3
2
1
0
Reserved
SDEN
GCTLRST
Bits
Description
[31:2]
Reserved
Reserved.
[1]
SDEN
Secure-digital Functionality Enable
0 = SD host functionality Disabled.
1 = SD host functionality Enabled.
[0]
GCTLRST
Software Engine Reset
0 = Writing 0 to this bit has no effect.
1 = Writing 1 to this bit to reset all SD host. The contents of control register will not be cleared.
This bit will auto clear after few clock cycles.