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AT32UC3A0512 Datasheet(PDF) 51 Page - ATMEL Corporation

Part # AT32UC3A0512
Description  High Performance, Low Power 32-Bit Atmel AVR Microcontroller
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT32UC3A0512 Datasheet(HTML) 51 Page - ATMEL Corporation

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51
AT32UC3A
12.9
EBI Timings
These timings are given for worst case process, T = 85
⋅C, VDDCORE = 1.65V, VDDIO = 3V and 40 pF load capacitance.
Note:
1. The maximum frequency of the SMC interface is the same as the max frequency for the HSB.
Note:
1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs rd hold length” or “nrd hold length”.
Table 12-22. SMC Clock Signal.
Symbol
Parameter
Max(1)
Units
1/(t
CPSMC)
SMC Controller Clock Frequency
1/(t
cpcpu)MHz
Table 12-23. SMC Read Signals with Hold Settings
Symbol
Parameter
Min
Units
NRD Controlled (READ_MODE = 1)
SMC1
Data Setup before NRD High
12
ns
SMC2
Data Hold after NRD High
0
SMC3
NRD High to NBS0/A0 Change(1)
nrd hold length * t
CPSMC - 1.3
SMC4
NRD High to NBS1 Change(1)
nrd hold length * t
CPSMC - 1.3
SMC5
NRD High to NBS2/A1 Change(1)
nrd hold length * t
CPSMC - 1.3
SMC6
NRD High to NBS3 Change(1)
nrd hold length * t
CPSMC - 1.3
SMC7
NRD High to A2 - A25 Change(1)
nrd hold length * t
CPSMC - 1.3
SMC8
NRD High to NCS Inactive(1)
(nrd hold length - ncs rd hold length) * t
CPSMC - 2.3
SMC9
NRD Pulse Width
nrd pulse length * t
CPSMC - 1.4
NRD Controlled (READ_MODE = 0)
SMC
10
Data Setup before NCS High
11.5
ns
SMC
11
Data Hold after NCS High
0
SMC
12
NCS High to NBS0/A0 Change
(1)
ncs rd hold length * t
CPSMC - 2.3
SMC
13
NCS High to NBS0/A0 Change
(1)
ncs rd hold length * t
CPSMC - 2.3
SMC
14
NCS High to NBS2/A1 Change
(1)
ncs rd hold length * t
CPSMC - 2.3
SMC
15
NCS High to NBS3 Change
(1)
ncs rd hold length * t
CPSMC - 2.3
SMC
16
NCS High to A2 - A25 Change
(1)
ncs rd hold length * t
CPSMC - 4
SMC
17
NCS High to NRD Inactive
(1)
ncs rd hold length - nrd hold length)* t
CPSMC - 1.3
SMC
18
NCS Pulse Width
ncs rd pulse length * t
CPSMC - 3.6
32058KS–AVR32–01/12


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