LM3S9790 Datasheet, PDF (1125/1185 Pages) Texas Instruments – Stellaris® LM3S9790 Microcontroller

Stellaris® LM3S9790 Microcontroller
Figure 26-15. Host-Bus 8/16 Mode Read Timing
ALE
(EPI0S30)
CSn
(EPI0S30)
WRn
(EPI0S29)
RDn/OEn
(EPI0S28)
BSEL0n/
BSEL1n^a
Address
E22
E18
E18
E24
Data
a _{BSEL0n and BSEL1n are available in Host-Bus 16 mode only.}
E23
E20
E19
E14
E15
Data
Figure 26-16. Host-Bus 8/16 Mode Write Timing
E22
ALE
(EPI0S30)
E18
CSn
E23
(EPI0S30)
WRn
E18
E19
E20
(EPI0S29)
E24
RDn/Oen
(EPI0S28)
BSEL0n
BSEL1n^a
Address
E16
Data
a _{BSEL0n and BSEL1n are available in Host-Bus 16 mode only.}
Data
Table 26-27. EPI General-Purpose Interface Characteristics
Parameter No
E25
E26
E27
E28
E29
E30
E31
E32
Parameter
Parameter Name
t_CK
t_CH
t_CL
t_ISU
t_IH
t_DV
t_DI
t_RDYSU
General-Purpose Clock period
General-Purpose Clock high time
General-Purpose Clock low time
Input signal set up time to rising clock edge
Input signal hold time from rising clock edge
Falling clock edge to output valid
Falling clock edge to output invalid
iRDY assertion or deassertion set up time to
falling clock edge
Min
Nom Max
20
-
-
10
-
-
10
-
-
10
-
-
10
-
-
-5
-
5
-5
-
5
20
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
June 14, 2010
Texas Instruments-Advance Information
1125