TMS320DM642_08 Datasheet, PDF (107/176 Pages) Texas Instruments – Video/Imaging Fixed-Point Digital Signal Processor

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TMS320DM642
Video/Imaging Fixed-Point Digital Signal Processor
SPRS200L – JULY 2002 – REVISED JANUARY 2007
MRS
AECLKOUTx
ACEx
ABE[7:0]
1
1
AEA[22:3]
4
5
MRS value
AED[63:0]
AAOE/ASDRAS/ASOE ^(A)
12
12
AARE/ASDCAS/ASADS/ASRE ^(A)
8
8
AAWE/ASDWE/ASWE ^(A)
11
11
A. AARE/ASDCAS/ASADS/ASRE, AAWE/ASDWE/ASWE, and AAOE/ASDRAS/ASOE operate as ASDCAS, ASDWE,
and ASDRAS, respectively, during SDRAM accesses.
Figure 5-28. SDRAM MRS Command for EMIFA
AECLKOUTx
ACEx
ABE[7:0]
AEA[22:14, 12:3]
AEA13
AED[63:0]
AAOE/ASDRAS/ASOE ^(A)
AARE/ASDCAS/ASADS/ASRE ^(A)
≥ TRAS cycles
Self Refresh
End Self-Refresh
AAWE/ASDWE/ASWE ^(A)
13
13
ASDCKE
A. AARE/ASDCAS/ASADS/ASRE, AAWE/ASDWE/ASWE, and AAOE/ASDRAS/ASOE operate as ASDCAS, ASDWE,
and ASDRAS, respectively, during SDRAM accesses.
Figure 5-29. SDRAM Self-Refresh Timing for EMIFA
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DM642 Peripheral Information and Electrical Specifications 107