ADSP-2187NKCA-320 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADSP-2187NKCA-320

DSP Microcomputer

Analog Devices 

ADSP-218xN Series

IDMA Write, Short Write Cycle

Table 22. IDMA Write, Short Write Cycle

Parameter

Timing Requirements:

tIKW

tIWP

tIDSU

tIDH

IACK Low before Start of Write1

Duration of Write1, 2

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

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

Switching Characteristic:

tIKHW

Start of Write to IACK High

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

10

3

2

IACK

IS

IWR

IAD15–0

tIKW

tIKHW

tIWP

tIDSU

tIDH

DATA

Figure 31. IDMA Write, Short Write Cycle

Max

10

Unit

ns

ns

ns

ns

ns

–34–

REV. 0

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