參數(shù)資料
型號: AT32UC3A3-XPLD
廠商: Atmel
文件頁數(shù): 53/94頁
文件大小: 0K
描述: KIT DEV/EVAL FOR AT32UC3A3
產(chǎn)品培訓(xùn)模塊: AVR® UC3 Introduction
Sensors Xplained
標準包裝: 1
系列: AVR®32 UC3-A3 Xplained
類型: MCU
適用于相關(guān)產(chǎn)品: AT32UC3A3
所含物品:
57
32072SH–AVR32–10/2012
AT32UC3A3
7.11
EBI Timings
7.11.1
SMC Signals
These timings are given for worst case process, T = 85
C, 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 7-30.
SMC Clock Signal
Symbol
Parameter
Unit
1/(t
CPSMC)
SMC Controller Clock Frequency
1/(t
cpcpu)MHz
Table 7-31.
SMC Read Signals with Hold Settings
Symbol
Parameter
Min.
Unit
NRD Controlled (READ_MODE = 1)
SMC1
Data Setup before NRD High
12
ns
SMC
2
Data Hold after NRD High
0
ns
SMC3
NRD High to NBS0/A0 Change(1)
nrd hold length * tCPSMC - 1.3
ns
SMC4
NRD High to NBS1 Change(1)
nrd hold length * t
CPSMC - 1.3
ns
SMC
5
NRD High to NBS2/A1 Change(1)
nrd hold length * t
CPSMC - 1.3
ns
SMC7
NRD High to A2 - A23 Change(1)
nrd hold length * t
CPSMC - 1.3
ns
SMC8
NRD High to NCS Inactive(1)
(nrd hold length - ncs rd hold length) * tCPSMC - 2.3
ns
SMC
9
NRD Pulse Width
nrd pulse length * t
CPSMC - 1.4
ns
NRD Controlled (READ_MODE = 0)
SMC
10
Data Setup before NCS High
11.5
ns
SMC
11
Data Hold after NCS High
0
ns
SMC12
NCS High to NBS0/A0 Change(1)
ncs rd hold length * tCPSMC - 2.3
ns
SMC
13
NCS High to NBS0/A0 Change(1)
ncs rd hold length * t
CPSMC - 2.3
ns
SMC
14
NCS High to NBS2/A1 Change(1)
ncs rd hold length * t
CPSMC - 2.3
ns
SMC16
NCS High to A2 - A23 Change(1)
ncs rd hold length * t
CPSMC - 4ns
SMC
17
NCS High to NRD Inactive(1)
ncs rd hold length - nrd hold length)* t
CPSMC - 1.3
ns
SMC
18
NCS Pulse Width
ncs rd pulse length * t
CPSMC - 3.6
ns
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