Analog-devices ADSP-2181 Manual do Utilizador descarregar pdf (Página 26)

ADSP-2181/ADSP-2183

REV. 0

–26–

ADSP-2181/ADSP-2183

Parameter Min Max Unit

IDMA Address Latch

Timing Requirements:

IALP

Duration of Address Latch

1, 3

10 ns

IASU

IAD15–0 Address Setup before Address Latch End

5ns

IAH

IAD15–0 Address Hold after Address Latch End

2ns

IKA

IACK Low before Start of Address Latch

0ns

IALS

Start of Write or Read after Address Latch End

2, 3

3ns

NOTES

Start of Address Latch = IS Low and IAL High.

Start of Write or Read = IS Low and IWR Low or IRD Low.

End of Address Latch = IS High or IAL Low.

IKA

IAD 15–0

IACK

IAL

IRD

IWR

IALP

IASU

IAH

IALS

Figure 28. IDMA Address Latch

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 39 40

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Analog-devices ADSP-2181 Manual do Utilizador Página 26