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

Номер в каталоге

Компоненты Описание

производитель

ADSP-2186L1111

DSP Microcomputer

Analog Devices 

TIMING PARAMETERS

Parameter

IDMA Read, Long Read Cycle

Timing Requirements:

tIKR

IACK Low before Start of Read1

tIRK

End of Read after IACK Low

Switching Characteristics:

tIKHR

tIKDS

tIKDH

IACK High after Start of Read1

IAD15–0 Data Setup before IACK Low

IAD15–0 Data Hold after End of Read2

tIKDD

IAD15–0 Data Disabled after End of Read2

tIRDE

IAD15–0 Previous Data Enabled after Start of Read

tIRDV

IAD15–0 Previous Data Valid after Start of Read

tIRDH1

tIRDH2

IAD15–0 Previous Data Hold after Start of Read (DM/PM1)3

IAD15–0 Previous Data Hold after Start of Read (PM2)4

NOTES

1Start of Read = IS Low and IRD Low.

2End of Read = IS High or IRD High.

3DM read or first half of PM read.

4Second half of PM read.

ADSP-2186L

Min

Max

0

2

17

0.5 tCK – 10

0

10

0

15

2 tCK – 5

tCK – 5

Unit

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

IACK

IS

IRD

IAD15–0

t IKR

tIKHR

t IRK

t IRDE

tIRDV

PREVIOUS

DATA

tIRDH

t IKDS

READ

DATA

tIKDH

tIKDD

Figure 20. IDMA Read, Long Read Cycle

REV. B

–25–

Share Link: