TMS320DM357_09 Datasheet, PDF (120/195 Pages) Texas Instruments – Digital Media System-on-Chip

TMS320DM357
Digital Media System-on-Chip
SPRS553 – NOVEMBER 2008
www.ti.com
Table 6-31. Switching Characteristics Over Recommended Operating Conditions for Asynchronous
Memory Cycles for EMIFA Module (see Figure 6-19 and Figure 6-20) (continued)
NO.
15 t_c(EMWCYCLE)
16 t_{su(EMCSL-EMWEL)}
17 t_{h(EMWEH-EMCSH)}
18 t_{su(EMRNW-EMWEL)}
19 t_{h(EMWEH-EMRNW)}
20 t_{su(EMBAV-EMWEL)}
21 t_{h(EMWEH-EMBAIV)}
22 t_{su(EMAV-EMWEL)}
23 t_{h(EMWEH-EMAIV)}
24 t_w(EMWEL)
25 t_{d(EMWAITH-EMWEH)}
26 t_{su(EMDV-EMWEL)}
27 t_{h(EMWEH-EMDIV)}
PARAMETER
EMIF write cycle time (EW = 0)
EMIF write cycle time (EW = 1)
Output setup time, EM_CS[5:2] low to EM_WE low
(SS = 0)
Output setup time, EM_CS[5:2] low to EM_WE low
(SS = 1)
Output hold time, EM_WE high to EM_CS[5:2] high
(SS = 0)
Output hold time, EM_WE high to EM_CS[5:2] high
(SS = 1)
Output setup time, EM_R/W valid to EM_WE low
Output hold time, EM_WE high to EM_R/W invalid
Output setup time, EM_BA[1:0] valid to EM_WE low
Output hold time, EM_WE high to EM_BA[1:0] invalid
Output setup time, EM_A[21:0] valid to EM_WE low
Output hold time, EM_WE high to EM_A[21:0] invalid
EM_WE active low width (EW = 0)
EM_WE active low width (EW = 1)
Delay time from EM_WAIT deasserted to EM_WE high
Output setup time, EM_D[15:0] valid to EM_WE low
Output hold time, EM_WE high to EM_D[15:0] invalid
-270
MIN
MAX
UNIT
(WS + WST + WH
+ TA + 4) * E - 0.5
(WS + WST + WH + TA
+ 4) * E + 0.5
ns
(WS + WST + WH
+ TA + 4) * E -0.5
4184 * E + 0.5 ns
(WS + 1) * E - 0.9
(WS + 1) * E + 1.4 ns
-1
ns
(WH + 1) * E - 2.1
(WH + 1) * E + 1.1 ns
-2.1
(WS + 1) * E - 0.7
(WH + 1) * E - 0.9
(WS + 1) * E - 1.7
(WH + 1) * E - 2.3
(WS + 1) * E - 1.8
(WH + 1) * E - 2.6
(WST + 1) * E - 2
(WST + 1) * E - 2
(WS + 1) * E - 2.2
(WH + 1) * E - 2.2
ns
(WS + 1) * E + 0.9 ns
(WH + 1) * E + 0.9 ns
(WS + 1) * E + 1.5 ns
(WH + 1) * E + 0.9 ns
(WS + 1) * E + 1.7 ns
(WH + 1) * E + 1 ns
(WST + 1) * E + 2 ns
(WST + 4097) * E + 2
4E + 10.4 ns
(WS + 1) * E + 1.4 ns
(WH + 1) * E + 1.4 ns
120 Peripheral and Electrical Specifications
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