ADSP-21486KSWZ-2AB datasheet(26/68 Pages) AD

26 / 68 page

Rev. B

Page 26 of 68

March 2013

ADSP-21483/ADSP-21486/ADSP-21487/ADSP-21488/ADSP-21489

Reset

Running Reset

The following timing specification applies to

RESETOUT/RUNRSTIN pin when it is configured as

RUNRSTIN.

Table 21. Reset

Parameter

Min

Max

Unit

Timing Requirements

tWRST

RESET Pulse Width Low

4 × tCK

tSRST

RESET Setup Before CLKIN Low

1 Applies after the power-up sequence is complete. At power-up, the processor’s internal phase-locked loop requires no more than 100 μ while RESET is low, assuming stable

VDD and CLKIN (not including start-up time of external clock oscillator).

Figure 8. Reset

CLKIN

RESET

tSRST

tWRST

Table 22. Running Reset

Parameter

Min

Max

Unit

Timing Requirements

tWRUNRST

Running RESET Pulse Width Low

4 × tCK

tSRUNRST

Running RESET Setup Before CLKIN High

Figure 9. Running Reset

CLKIN

RUNRSTIN

tWRUNRST

tSRUNRST

ADSP-21486KSWZ-2AB Datenblatt(PDF) 26 Page - Analog Devices

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