Datasheet

1136
SAM9G15 [DATASHEET]
11052D–ATARM–31-Oct-12
Notes: 1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr hold length” or “NWE
hold length”.
NO HOLD SETTINGS (nwe hold = 0)
SMC
21
NWE High to Data OUT,
NBS0/A0 NBS1, NBS2/A1,
NBS3, A2 - A25, NCS
change
(1)
1.9 1.5 ns
SMC
21b
Min Period/Max Frequency
with No Hold settings
11.4 9.7 87 103
ns/
MHz
Table 45-33. SMC Write Signals - NWE Controlled (WRITE_MODE = 1) (Continued)
Symbol Parameter Min Max
Units1.8V Supply 3.3V Supply
1.8 V
Supply
3.3 V
Supply
Table 45-34. SMC Write NCS Controlled (WRITE_MODE = 0)
Symbol Parameter Min
Units1.8V Supply 3.3V Supply
SMC
22
Data Out Valid before NCS High ncs wr pulse * t
CPMCK
- 2.9 ncs wr pulse * t
CPMCK
- 3.0 ns
SMC
23
NCS Pulse Width ncs wr pulse * t
CPMCK
- 4.0 ncs wr pulse * t
CPMCK
- 4.0 ns
SMC
24
NBS0/A0 NBS1, NBS2/A1, NBS3,
A2 - A25 valid before NCS low
ncs wr setup * t
CPMCK
- 3.6 ncs wr setup * t
CPMCK
- 3.5 ns
SMC
25
NWE low before NCS high
(ncs wr setup - nwe setup + ncs
pulse)* t
CPMCK
- 4.6
(ncs wr setup - nwe setup +
ncs pulse)* t
CPMCK
- 4.6
ns
SMC
26
NCS High to Data Out, NBS0/A0, NBS1,
NBS2/A1, NBS3, A2 - A25, change
ncs wr hold * t
CPMCK
- 5.4 ncs wr hold * t
CPMCK
- 4.5 ns
SMC
27
NCS High to NWE Inactive
(ncs wr hold - nwe hold)* t
CPMCK
- 4.2
(ncs wr hold - nwe hold)*
t
CPMCK
- 3.8
ns