ADSP-BF518KSWZ-ENG View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADSP-BF518KSWZ-ENG

Blackfin Embedded Processor

Analog Devices 

Preliminary Technical Data

External DMA Request Timing

Table 23 and Figure 11 describe the External DMA Request

operations.

Table 23. External DMA Request Timing

Parameter

Timing Parameters

tDR

tDH

tDMARACT

tDMARINACT

DMARx Asserted to CLKOUT High Setup

CLKOUT High to DMARx Deasserted Hold Time

DMARx Active Pulse Width

DMARx Inactive Pulse Width

ADSP-BF512/BF514/BF516/BF518 (F)

Min

Max

6.0

0.0

1.0 × tSCLK

1.75 × tSCLK

Unit

ns

ns

ns

ns

CLKOUT

DMAR0/1

(Active Low)

tDR

tDMARACT

tDH

tDMARINACT

DMAR0/1

(Active High)

tDMARACT

tDMARINACT

Figure 11. External DMA Request Timing

Rev. PrE | Page 31 of 62 | March 2009

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