ADSP-2186L1111 Просмотр технического описания (PDF) - Analog Devices

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ADSP-2186L1111

DSP Microcomputer

Analog Devices 

TIMING PARAMETERS

Parameter

IDMA Write, Short Write Cycle

Timing Requirements:

tIKW

IACK Low before Start of Write1

tIWP

Duration of Write1, 2

tIDSU

IAD15–0 Data Setup before End of Write2, 3, 4

tIDH

IAD15–0 Data Hold after End of Write2, 3, 4

Switching Characteristics:

tIKHW

Start of Write to IACK High

NOTES

1Start of Write = IS Low and IWR Low.

2End of Write = IS High or IWR High.

3If Write Pulse ends before IACK Low, use specifications tIDSU, tIDH.

4If Write Pulse ends after IACK Low, use specifications tIKSU, tIKH.

Min

0

15

5

2

IACK

IS

IWR

IAD15–0

tIKW

tIKHW

tIWP

tIDSU

tIDH

DATA

Figure 18. IDMA Write, Short Write Cycle

ADSP-2186L

Max

Unit

ns

ns

ns

ns

17

ns

REV. B

–23–

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