XETK-V2.0 - User’s Guide
66
ETAS
Technical Data
7.9.2
Nexus Timing Characteristics
MCKO
/MSEO[1:0]
MDO[16:0]
t
MCKO
t
SU
t
H
t
SU
t
H
Fig. 7-2
XETK-V2.0 Nexus Timing Diagram (valid up to 66 MHz)
Parameter Min
Max
Unit
t
MCKO
15
n/a
ns
t
SU_MDO[15:0]
3
n/a
ns
t
H_MDO[15:0]
3
n/a
ns
t
SU_/MSEO[1:0]
3
n/a
ns
t
H_/MSEO[1:0
3
n/a
ns
7.9.3
XETK-V2.0A/C SRAM Read Timing
CLKOUT
/WR.RD
ADDR[31:0]
/TS
/CS[3:0]
/OE
DATA[31:0]
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
0
t
9
t
10
t
11
t
12
t
13
Fig. 7-3
SRAM Read Cycle
Para. Description
Min
Max Unit
t
0
Clock Cycle Time
14.84 50
ns
t
1
/TS (Transfer Start) Setup Time
3.5
-
ns
t
2
/TS (Transfer Start) Hold Time
1
-
ns
t
3
/CS[x] (Chip Select) Setup Time
3.5
-
ns
t
4
Address Setup Time
3.5
-
ns
t
5
Address Hold Time
1
-
ns
