Texas Instruments SM320C6455-EP manual ABA10 AED630, Strobe Setup = Extended Strobe

Models: SM320C6455-EP

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SM320C6455-EP

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FIXED-POINT DIGITAL SIGNAL PROCESSOR

 

 

SPRS462B – SEPTEMBER 2007 – REVISED JANUARY 2008

 

 

Strobe = 4

Setup = 1

 

Hold = 1

AECLKOUT

 

 

11

 

12

ACEx

 

12

11

 

ABE[7:0]

 

Byte Enables

11

 

12

AEA[19:0]/

 

Address

ABA[1:0]

 

 

 

11

 

12

AED[63:0]

 

Write Data

AAOE/ASOE(A)

13

13

 

AAWE/ASWE(A)

 

 

 

11

 

12

 

 

AR/W

 

 

AARDY(B)

 

DEASSERTED

AAAOE/ASOE and AAWE/ASWE operate as AAOE (identified under select signals) and AAWE, respectively, during asynchronous memory accesses.

BPolarity of the AARDY signal is programmable through the AP field of the EMIFA Async Wait Cycle Configuration register (AWCC).

Figure 7-34. Asynchronous Memory Write Timing for EMIFA

Strobe

 

Strobe

Setup = 2

Extended Strobe

Hold = 2

8

9

AECLKOUT

6

5

7

7

AARDY(A) ASSERTED DEASSERTED

A Polarity of the AARDY signal is programmable through the AP field of the EMIFA Async Wait Cycle Configuration register (AWCC).

Figure 7-35. AARDY Timing

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Texas Instruments SM320C6455-EP manual ABA10 AED630, Strobe Setup = Extended Strobe, Aeclkout Aardya Asserted Deasserted