
NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 932 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
SD Host Extend Control Register (SDH_ECTL)
Register
Offset
R/W
Description
Reset Value
SDH_ECTL
0x840
R/W
SD Host Extend Control Register
0x0000_0003
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
PWROFF1
PWROFF0
Bits
Description
[31:2]
Reserved
Reserved.
[1]
PWROFF1
SD Port 1 Power Disable
Set this bit low to make the SD1_nPWR functional pin low to turn on the power of SD port 1.
0 = SD port 1 power Enabled.
1 = SD port 1 power Disabled.
[0]
PWROFF0
SD Port 0 Power Disable
Set this bit low to make the SD0_nPWR functional pin low to turn on the power of SD port 0.
0 = SD port 0 power Enabled.
1 = SD port 0 power Disabled.