TMS320C6654 Datasheet, PDF (193/222 Pages) Texas Instruments – Fixed and Floating-Point Digital Signal Processor

TMS320C6654
Fixed and Floating-Point Digital Signal Processor
www.ti.com
Table 7-64
EMIF16 Asynchronous Memory Timing Requirements ⁽¹⁾ (Part 2 of 2)
SPRS841—March 2012
(see Figure 7-40 and Figure 7-41)
No.
24 t_w(WEL)
26 t_osu(DV-WEL)
27 t_oh(WEH-DIV)
25 t_d(WAITH-WEH)
End of Table 7-64
WE active time low, when ew = 1. Extended wait mode is enabled.
Output setup time from D valid to WE low
Output hold time from WE high to D invalid
Delay time from WAIT deasserted to WE# high
Min
(WST+1) * E - 3
(WS+1) * E - 3
(WH+1) * E - 3
Max
Unit
ns
ns
ns
4E + 3 ns
1 E = 1/SYSCLK7
Figure 7-40 EMIF16 Asynchronous Memory Read Timing Diagram
3
EM_CS[5:2]
EM_R/W
EM_BA[1:0]
EM_A[21:0]
4
6
8
EM_OE
EM_D[15:0]
10
12
EM_WE
Figure 7-41 EMIF16 Asynchronous Memory Write Timing Diagram
15
EM_CS[5:2]
EM_R/W
EM_BA[1:0]
EM_A[21:0]
16
18
20
22
24
EM_WE
26
EM_D[15:0]
EM_OE
5
7
9
13
17
19
21
23
27
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Peripheral Information and Electrical Specifications 193