DS90UB913 bist mode without PCLK

Toshi

I'd like to use DS90UB913 bist mode with 42MHz External CLK, without PCLK. Is it possible to setup the device ? ( Cusotmer want to do a EMC test with out sensor because a sensore makes the test noisy.)

over 11 years ago

0 Mark Sauerwald88474 over 11 years ago

TI__Genius 13475 points

You have a choice between several clock sources during BIST testing. There is an internal clock generator in the '913 that can be used as a clock source, the frequency that this runs at depends upon the mode that the device is in, and is shown in Table 3 on the datasheet.

If you select 'PCLK' mode, but are using the external oscillator mode, then BIST will operate using the external oscillator.

0 Toshi over 11 years ago in reply to Mark Sauerwald88474

Expert 1780 points

Thank you very much for your help. Well, I'd like to confirm that if I select PCLK mode, BIST will operate the external oscillator, - Does the BIST will operate with out PCLK ? - Does it need any special Register setting ?

0 Toshi over 11 years ago in reply to Toshi

Expert 1780 points

I'd like to know the following questions, - Does the BIST will operate with out PCLK ? - Does it need any special Register setting ?

0 Mark Sauerwald88474 over 11 years ago in reply to Toshi

TI__Genius 13475 points

BIST can operate either with the clock sourced from PCLK or with an internally generated clock. This is selected via register 0x14 in the DS90UB913 and is shown in Table 3 of the datasheet.

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DS90UB913 bist mode without PCLK