at91sam9260-cj ATMEL Corporation, at91sam9260-cj Datasheet - Page 735

• Manufacturer Part Number: at91sam9260-cj
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

Table 41-19. SMC Write Signals with Hold Settings
Note:
Table 41-20. SMC Write Signals with No Hold Settings (NWE Controlled only)
6221G–ATARM–31-Jan-08
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
SMC
23
24
25
26
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr hold length” or “nwe hold
length”.
Parameter
Data Out Valid before NWE High
Data Out Valid after NWE High
NWE High to NBS0/A0 Change
NWE High to NBS1 Change
NWE High to NBS2/A1 Change
NWE High to NBS3 Change
NWE High to A2 - A25 Change
NWE High to NCS Inactive
NWE Pulse Width
Data Out Valid before NCS High
Data Out Valid after NCS High
NCS High to NWE Inactive
Parameter
NWE Rising to A2-A25 Valid
NWE Rising to NBS0/A0 Valid
NWE Rising to NBS1 Change
NWE Rising to A1/NBS2 Change
NWE Rising to NBS3 Change
NWE Rising to NCS Rising
Data Out Valid before NWE Rising
Data Out Valid after NWE Rising
NWE Pulse Width
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
NWE Controlled (WRITE_MODE = 1)
NCS Controlled (WRITE_MODE = 0)
(ncs wr pulse length - 1)* t
ncs wr hold length * t
(nwe pulse length - 1) * t
(nwe pulse length - 1) * t
nwe pulse length * t
nwe pulse length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
(nwe hold length - ncs wr hold
(ncs wr hold length - nwe hold
nwe hold length * t
length)* t
length)* t
1.8V Supply
1.8V Supply
2.8
2.8
3.7
0.5
0.3
0.2
0.4
1.5
2.8
CPMCK
CPMCK
8
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
+ 3.7
+ 3.7
CPMCK
CPMCK
CPMCK
+ 0.5
+ 0.3
+ 0.4
+ 3.5
+ 0.2
+ 8.9
+ 8.9
+ 8
+ 5.7
+
+
+
Min
Min
(nwe pulse length - 1) * t
ncs wr hold length * t
(nwe pulse length - 1) * t
(ncs wr pulse length - 1)* t
nwe pulse length * t
nwe pulse length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
nwe hold length * t
(nwe hold length - ncs wr hold
(ncs wr hold length - nwe hold
nwe hold length * t
length)* t
length)* t
3.3V Supply
3.3V Supply
AT91SAM9260
+ 3.6
3.5
0.6
0.3
0.2
0.4
1.5
3.6
3.6
CPMCK
CPMCK
8
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
+ 3.7
+ 3.7
CPMCK
CPMCK
+ 0.6
+ 0.3
+ 0.4
+ 3.5
+ 0.2
CPMCK
+ 8.9
+ 8.9
+ 8
+ 5.8
+
+
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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