
NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 269 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
[14:11]
tACC
Access Cycles (NOE or NWE Active Time) for External I/O Bank 0~4
0000 = Reserved.
0001 = Access Cycles (nOE or nWE active time) is 1 MCLK.
0010 = Access Cycles (nOE or nWE active time) is 2 MCLK.
0011 = Access Cycles (nOE or nWE active time) is 3 MCLK.
0100 = Access Cycles (nOE or nWE active time) is 4 MCLK.
0101 = Access Cycles (nOE or nWE active time) is 5 MCLK.
0110 = Access Cycles (nOE or nWE active time) is 6 MCLK.
0111 = Access Cycles (nOE or nWE active time) is 7 MCLK.
1000 = Access Cycles (nOE or nWE active time) is 9 MCLK.
1001 = Access Cycles (nOE or nWE active time) is 11 MCLK.
1010 = Access Cycles (nOE or nWE active time) is 13 MCLK.
1011 = Access Cycles (nOE or nWE active time) is 15 MCLK.
1100 = Access Cycles (nOE or nWE active time) is 17 MCLK.
1101 = Access Cycles (nOE or nWE active time) is 19 MCLK.
1110 = Access Cycles (nOE or nWE active time) is 21 MCLK.
1111 = Access Cycles (nOE or nWE active time) is 23 MCLK.
[10:8]
tCOH
Chip Selection Hold-on Time on NOE or NWBE for External I/O Bank 0~4
000 = Chip Selection Hold-On Time on nOE or nWBE is 0 MCLK.
001 = Chip Selection Hold-On Time on nOE or nWBE is 1 MCLK.
010 = Chip Selection Hold-On Time on nOE or nWBE is 2 MCLK.
011 = Chip Selection Hold-On Time on nOE or nWBE is 3 MCLK.
100 = Chip Selection Hold-On Time on nOE or nWBE is 4 MCLK.
101 = Chip Selection Hold-On Time on nOE or nWBE is 5 MCLK.
110 = Chip Selection Hold-On Time on nOE or nWBE is 6 MCLK.
111 = Chip Selection Hold-On Time on nOE or nWBE is 7 MCLK.
[7:5]
tACS
Address Set-up Before NECS for External I/O Bank 0~4
000 = Address Set-up Before nECS is 0 MCLK.
001 = Address Set-up Before nECS is 1 MCLK.
010 = Address Set-up Before nECS is 2 MCLK.
011 = Address Set-up Before nECS is 3 MCLK.
100 = Address Set-up Before nECS is 4 MCLK.
101 = Address Set-up Before nECS is 5 MCLK.
110 = Address Set-up Before nECS is 6 MCLK.
111 = Address Set-up Before nECS is 7 MCLK.
[4:2]
tCOS
Chip Selection Set-up Time on NOE or NWBE for External I/O Bank 0~4
When the bank is configured, the access to its bank stretches chip selection time before the
nOE or new signal is activated.
000 = Chip selection set-up time on nOE or nWBE is 0 MCLK.
001 = Chip selection set-up time on nOE or nWBE is 1 MCLK.
010 = Chip selection set-up time on nOE or nWBE is 2 MCLK.
011 = Chip selection set-up time on nOE or nWBE is 3 MCLK.
100 = Chip selection set-up time on nOE or nWBE is 4 MCLK.
101 = Chip selection set-up time on nOE or nWBE is 5 MCLK.
110 = Chip selection set-up time on nOE or nWBE is 6 MCLK.
111 = Chip selection set-up time on nOE or nWBE is 7 MCLK.