PN7462 auxiliar smartcard slot

[sergioa]

Anyone can enable clk_aux output for TDA in PN7462? 

Thanks in advance

[sergioa]

NXP confirm that the PN7362 don't have ISO7816 digital UART for that SAM can only de used with 7462.

[sergioa]

Thanks Dennis is working now in the PN7462 . But not in the PN7362 do you know if this chip support auxiliar slot ?

[dennisblauhut]

Hello Sergio,

did you set the IOAUXen and CLKAUXen bit in the CT_SSR_REG ?

[dennisblauhut]

additional i had to set the SLEW_RATE to 1 in the PCR_PAD_CLK_AUX_REG because the clock signal looks too bad at the input at the tda8026. now i'm able to read the ATR from a smart card.

[benten]

Hi Dennis,

How did you manage to activate the card? Have you had no problem reading ATR?
Clock output works - thanks, but with ATR reading it failed :-(.
(Like you could see here - https://community.nxp.com/thread/483031)

Kamil

[sergioa]

Hello Ivan Thanks for reply.

I tried with this documentation but didn't work.

I modify the necesary register but de clk_aux dont't work.

Anyone had some example that work ?.

thanks in advance

[dennisblauhut]

Hello, 

i've got the same question and i doesn't find the answer in UM10858 from the PN7462 Controller Development Kit and now i'm waiting to get access to UM314511 to solve the problem.

[IvanRuiz]

Hello Sergio,

Please refer to Um314511 - UM10858 PN7462 HW User Manual (1.1) available under NDA in DocStore  for more information about enabling CLK_AUX for TDA slot extender.

I hope this helps.

Best regards,

Ivan.