Datasheet

SAM9261 [DATASHEET]
Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16
686
Note: 1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr hold length” or “NWE hold
length”.
Table 38-17. SMC Write Signals with Hold Settings
Symbol Parameter
Min
Unit
1.8V VDDIOM Supply 3.3V VDDIOM Supply
1.08V VDDCORE
Supply
1.2V VDDCORE
Supply
1.08V VDDCORE
Supply
1.2V VDDCORE
Supply
NWE Controlled (WRITE_MODE = 1)
SMC
23
Data Out Valid before NWE High
(NWE pulse
length) * t
CPMCK
-
3.8
(NWE pulse
length) * t
CPMCK
-
2.9
(NWE pulse
length) * t
CPMCK
-
2.7
(NWE pulse
length) * t
CPMCK
-
2.1
ns
SMC
24
Data Out Valid after NWE High
(1)
NWE hold length
* t
CPMCK
- 5.0
NWE hold length
* t
CPMCK
- 4.1
NWE hold length
* t
CPMCK
- 3.7
NWE hold length
* t
CPMCK
- 3.1
ns
SMC
25
NWE High to NBS0/A0 Change
(1)
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.1
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.1
ns
SMC
26
NWE High to NBS1 Change
(1)
NWE hold length
* t
CPMCK
- 0.1
NWE hold length
* t
CPMCK
- 0.1
NWE hold length
* t
CPMCK
- 0.1
NWE hold length
* t
CPMCK
- 0.1
ns
SMC
29
NWE High to NBS2/A1 Change
(1)
NWE hold length
* t
CPMCK
- 0.1
NWE hold length
* t
CPMCK
- 0.0
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.1
ns
SMC
30
NWE High to NBS3 Change
(1)
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.2
NWE hold length
* t
CPMCK
- 0.2
ns
SMC
31
NWE High to A2–A25 Change
(1)
NWE hold length
* t
CPMCK
- 1.0
NWE hold length
* t
CPMCK
- 0.9
NWE hold length
* t
CPMCK
- 1.2
NWE hold length
* t
CPMCK
- 0.8
ns
SMC
32
NWE High to NCS Inactive
(1)
(NWE hold length
- ncs wr hold
length) * t
CPMCK
-
0.9
(NWE hold length
- ncs wr hold
length) * t
CPMCK
-
0.7
(NWE hold length
- ncs wr hold
length) * t
CPMCK
-
0.9
(NWE hold length
- ncs wr hold
length) * t
CPMCK
-
0.7
ns
SMC
33
NWE Pulse Width
NWE pulse length
* t
CPMCK
- 0.4
NWE pulse length
* t
CPMCK
- 0.3
NWE pulse length
* t
CPMCK
- 0.1
NWE pulse length
* t
CPMCK
- 0.1
ns
NCS Controlled (WRITE_MODE = 0)
SMC
34
Data Out Valid before NCS High
(ncs wr pulse
length) * t
CPMCK
-
4.7
(ncs wr pulse
length) * t
CPMCK
-
3.6
(ncs wr pulse
length) * t
CPMCK
-
3.6
(ncs wr pulse
length) * t
CPMCK
-
2.7
ns
SMC
35
Data Out Valid after NCS High
(1)
ncs wr hold length
* t
CPMCK
- 7.5
ncs wr hold length
* t
CPMCK
- 5.8
ncs wr hold length
* t
CPMCK
- 6.2
ncs wr hold length
* t
CPMCK
- 4.9
ns
SMC
36
NCS High to NWE Inactive
(1)
(ncs wr hold
length - NWE
hold length) *
t
CPMCK
- 2.6
(ncs wr hold
length - NWE
hold length) *
t
CPMCK
- 1.9
(ncs wr hold
length - NWE
hold length) *
t
CPMCK
- 2.6
(ncs wr hold
length - NWE
hold length) *
t
CPMCK
- 1.9
ns