ADV
ANCEINFORMA
TION
TMS320F28377S, TMS320F28376S, TMS320F28375S, TMS320F28374S
SPRS881A – AUGUST 2014 – REVISED JUNE 2015
Table 5-37. EMIF Asynchronous Memory Switching Characteristics
(continued)
NO.
PARAMETER
MIN
MAX
UNIT
EMxOE active low width (EW = 0)
(RST)*E–1
(RST)*E+1
ns
10
t
w(EMOEL)
EMxOE active low width (EW = 1)
(RST+(EWC*16))*E–1
(RST+(EWC*16))*E+1
ns
Delay time from EMxWAIT
11
t
d(EMWAITH-EMOEH)
3E+8
4E+10
ns
deasserted to EMxOE high
Output setup time, EMxDQM[y:0]
29
t
su(EMDQMV-EMOEL)
(RS)*E–3
(RS)*E+2
ns
valid to EMxOE low
Output hold time, EMxOE high to
30
t
h(EMOEH-EMDQMIV)
(RH)*E–3
(RH)*E
ns
EMxDQM[y:0] invalid
Writes
EMIF write cycle time (EW = 0)
(WS+WST+WH+2)*E–3
(WS+WST+WH+2)*E+1
ns
15
t
c(EMWCYCLE)
(WS+WST+WH+2+
(WS+WST+WH+2+
EMIF write cycle time (EW = 1)
ns
(EWC*16))*E–3
(EWC*16))*E+1
Output setup time, EMxCS[y:2] low
(WS)*E–3
(WS)*E+1
ns
to EMxWE low (SS = 0)
16
t
su(EMCEL-EMWEL)
Output setup time, EMxCS[y:2] low
–3
1
ns
to EMxWE low (SS = 1)
Output hold time, EMxWE high to
(WH)*E–3
(WH)*E
ns
EMxCS[y:2] high (SS = 0)
17
t
h(EMWEH-EMCEH)
Output hold time, EMxWE high to
–3
0
ns
EMxCS[y:2] high (SS = 1)
Output setup time, EMxDQM[y:0]
18
t
su(EMDQMV-EMWEL)
(WS)*E–3
(WS)*E+1
ns
valid to EMxWE low
Output hold time, EMxWE high to
19
t
h(EMWEH-EMDQMIV)
(WH)*E–3
(WH)*E
ns
EMxDQM[y:0] invalid
Output setup time, EMxBA[y:0]
20
t
su(EMBAV-EMWEL)
(WS)*E–3
(WS)*E+1
ns
valid to EMxWE low
Output hold time, EMxWE high to
21
t
h(EMWEH-EMBAIV)
(WH)*E–3
(WH)*E
ns
EMxBA[y:0] invalid
Output setup time, EMxA[y:0] valid
22
t
su(EMAV-EMWEL)
(WS)*E–3
(WS)*E+1
ns
to EMxWE low
Output hold time, EMxWE high to
23
t
h(EMWEH-EMAIV)
(WH)*E–3
(WH)*E
ns
EMxA[y:0] invalid
EMxWE active low width
(WST)*E–1
(WST)*E+1
ns
(EW = 0)
24
t
w(EMWEL)
EMxWE active low width
(WST+(EWC*16))*E–1
(WST+(EWC*16))*E+1
ns
(EW = 1)
Delay time from EMxWAIT
25
t
d(EMWAITH-EMWEH)
3E+8
4E+10
ns
deasserted to EMxWE high
Output setup time, EMxD[y:0] valid
26
t
su(EMDV-EMWEL)
(WS)*E–3
(WS)*E+1
ns
to EMxWE low
Output hold time, EMxWE high to
27
t
h(EMWEH-EMDIV)
(WH)*E–3
(WH)*E
ns
EMxD[y:0] invalid
84
Specifications
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