NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 133 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
GPIOJ Low Byte Multiple Function Control Register (SYS_GPJ_MFPL)
Register
Offset
R/W
Description
Reset Value
SYS_GPJ_MFP
L
0x0B8
R/W
GPIOJ Low Byte Multiple Function Control Register
0x000X_XXXX
[1]
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
MFP_GPJ4
15
14
13
12
11
10
9
8
MFP_GPJ3
MFP_GPJ2
7
6
5
4
3
2
1
0
MFP_GPJ1
MFP_GPJ0
Bits
Description
[31:20]
Reserved
Reserved.
[19:16]
MFP_GPJ4
Pin PJ.4 Multi Function Selection
0000 = PJ.4.
1111 = JTAG_nTRST.
Others = PJ.4.
[15:12]
MFP_GPJ3
Pin PJ.3 Multi Function Selection
0000 = PJ.3.
1111 = JTAG_TDO.
Others = PJ.3.
[11:8]
MFP_GPJ2
Pin PJ.2 Multi Function Selection
0000 = PJ.2.
1111 = JTAG_TDI.
Others = PJ.2.
[7:4]
MFP_GPJ1
Pin PJ.1 Multi Function Selection
0000 = PJ.1.
1111 = JTAG_TMS.
Others = PJ.1.
[3:0]
MFP_GPJ0
Pin PJ.0 Multi Function Selection
0000 = PJ.0.
1111 = JTAG_TCK.
Others = PJ.0.
Note: [1] Dependents on power-on setting.