OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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Table 6-24. EMIFA Asynchronous Memory Switching Characteristics
(1) (2) (3)
(continued)
No.
PARAMETER
MIN
NOM
MAX
UNIT
(WS+WST+WH)*
(WS+WST+WH)*
EMIF write cycle time (EW = 0)
(WS+WST+WH)*E
ns
E-3
E+3
15
t
c(EMWCYCLE)
(WS+WST+WH+ (WS+WST+WH+EW
(WS+WST+WH+
EMIF write cycle time (EW = 1)
ns
EWC)*E - 3
C)*E
EWC)*E + 3
Output setup time, EMA_CE[5:2] low to
(WS)*E - 3
(WS)*E
(WS)*E + 3
ns
EMA_WE low (SS = 0)
16
t
su(EMCEL-EMWEL)
Output setup time, EMA_CE[5:2] low to
-3
0
+3
ns
EMA_WE low (SS = 1)
Output hold time, EMA_WE high to
(WH)*E-3
(WH)*E
(WH)*E+3
ns
EMA_CE[5:2] high (SS = 0)
17
t
h(EMWEH-EMCEH)
Output hold time, EMA_WE high to
-3
0
+3
ns
EMA_CE[5:2] high (SS = 1)
t
su(EMDQMV-
Output setup time, EMA_BA[1:0] valid to
18
(WS)*E-3
(WS)*E
(WS)*E+3
ns
EMWEL)
EMA_WE low
t
h(EMWEH-
Output hold time, EMA_WE high to
19
(WH)*E-3
(WH)*E
(WH)*E+3
ns
EMDQMIV)
EMA_BA[1:0] invalid
Output setup time, EMA_BA[1:0] valid to
20
t
su(EMBAV-EMWEL)
(WS)*E-3
(WS)*E
(WS)*E+3
ns
EMA_WE low
Output hold time, EMA_WE high to
21
t
h(EMWEH-EMBAIV)
(WH)*E-3
(WH)*E
(WH)*E+3
ns
EMA_BA[1:0] invalid
Output setup time, EMA_A[13:0] valid to
22
t
su(EMAV-EMWEL)
(WS)*E-3
(WS)*E
(WS)*E+3
ns
EMA_WE low
Output hold time, EMA_WE high to
23
t
h(EMWEH-EMAIV)
(WH)*E-3
(WH)*E
(WH)*E+3
ns
EMA_A[13:0] invalid
EMA_WE active low width (EW = 0)
(WST)*E-3
(WST)*E
(WST)*E+3
ns
24
t
w(EMWEL)
EMA_WE active low width (EW = 1)
(WST+EWC)*E-3
(WST+EWC)*E (WST+EWC)*E+3
ns
t
d(EMWAITH-
Delay time from EMA_WAIT deasserted to
25
3E-3
4E
4E+3
ns
EMWEH)
EMA_WE high
Output setup time, EMA_D[15:0] valid to
26
t
su(EMDV-EMWEL)
(WS)*E-3
(WS)*E
(WS)*E+3
ns
EMA_WE low
Output hold time, EMA_WE high to
27
t
h(EMWEH-EMDIV)
(WH)*E-3
(WH)*E
(WH)*E+3
ns
EMA_D[15:0] invalid
92
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