Atmel SAM4S-XPLD Atmel ATSAM4S-XPLD ATSAM4S-XPLD Hoja De Datos
Los códigos de productos
ATSAM4S-XPLD
1082
SAM4S [DATASHEET]
11100E–ATARM–24-Jul-13
43.11.6.2Write Timings
SMC
12
A0 - A22 Valid before NCS High
(NCS rd setup +
NCS rd pulse)*
t
CPMCK
- 6.5
(NCS rd setup +
NCS rd pulse)*
t
CPMCK
- 6.3
—
—
ns
SMC
13
NRD Low before NCS High
(NCS rd setup +
NCS rd pulse -
NRD setup)*
t
CPMCK
- 5.6
(NCS rd setup +
NCS rd pulse - NRD
setup)* t
CPMCK
- 5.4
—
—
ns
SMC
14
NCS Pulse Width
NCS rd pulse
length * t
CPMCK
-7.7
NCS rd pulse length
* t
CPMCK
- 6.7
—
—
ns
Table 43-52. SMC Read Signals - NCS Controlled (READ_MODE = 0) (Continued)
Table 43-53. SMC Write Signals - NWE Controlled (WRITE_MODE = 1)
Symbol
Parameter
Min
Max
Units
1.8V
1.8V
HOLD or NO HOLD Settings (NWE hold
≠ 0, NWE hold = 0)
SMC
15
Data Out Valid before NWE High
NWE pulse * t
CPMCK
-6.9
NWE pulse *
t
CPMCK
- 6.7
—
—
ns
SMC
16
NWE Pulse Width
NWE pulse * t
CPMCK
- 7.3
NWE pulse *
t
CPMCK
- 6.3
—
—
ns
SMC
17
A0 - A22 Valid before NWE Low
NWE setup * t
CPMCK
- 7.2
NWE setup *
t
CPMCK
- 7.0
—
—
ns
SMC
18
NCS Low before NWE High
(NWE setup - NCS
rd setup + NWE
pulse) * t
CPMCK
-7.1
(NWE setup -
NCS rd setup +
NWE pulse) *
t
CPMCK
- 6.8
—
—
ns
HOLD Settings (NWE hold
≠ 0)
SMC
19
NWE High to Data OUT, NBS0/A0
NBS1, NBS2/A1, NBS3, A2 - A25
Change
NBS1, NBS2/A1, NBS3, A2 - A25
Change
NWE hold * t
CPMCK
-
8.8
NWE hold * t
CPMCK
- 6.9
—
—
ns
SMC
20
(NWE hold - NCS
wr hold)* t
CPMCK
-
5.2
(NWE hold - NCS
wr hold)* t
CPMCK
-
5.0
—
—
ns
NO HOLD Settings (NWE hold = 0)
SMC
21
3.0
2.8
—
—
ns