Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
1176
Notes: 1. Hold length = total cycle duration - setup duration - pulse duration. “Hold length” is for “NCS wr hold length” or “NWE hold
length”.
2. 1.8V domain: VDDIO from 1.65 V to 1.95V, maximum external capacitor = 30pF
3. 3.3V domain: VDDIO from 2.85V to 3.6V, maximum external capacitor = 50pF
3. 3.3V domain: VDDIO from 2.85V to 3.6V, maximum external capacitor = 50pF
Table 44-68.
SMC Write Signals - NCS Controlled (WRITE_MODE = 0)
Symbol
Parameter
Min
Max
Units
3.3V
1.8V
SMC
22
Data Out Valid before NCS High
NCS wr pulse *
t
CPMCK
- 6.3
NCS wr pulse *
t
CPMCK
- 6.2
—
—
ns
SMC
23
NCS Pulse Width
NCS wr pulse *
t
CPMCK
- 7.7
NCS wr pulse *
t
CPMCK
- 6.7
—
—
ns
SMC
24
A0 - A22 Valid before NCS Low
NCS wr setup *
t
CPMCK
- 6.5
NCS wr setup *
t
CPMCK
- 6.3
—
—
ns
SMC
25
NWE Low before NCS High
(NCS wr setup -
NWE setup +
NCS pulse)*
t
CPMCK
- 5.1
(NCS wr setup -
NWE setup +
NCS pulse)*
t
CPMCK
- 4.9
—
—
ns
SMC
26
NCS High to Data Out, A0 - A25,
Change
Change
NCS wr hold *
t
CPMCK
- 10.2
NCS wr hold *
t
CPMCK
- 8.4
—
—
ns
SMC
27
NCS High to NWE Inactive
(NCS wr hold -
NWE hold)*
t
CPMCK
- 2.1
(NCS wr hold -
NWE hold)*
t
CPMCK
- 1.6
—
—
ns