topic Re: SC18IS602B Chip Select Function in Other NXP Products

SC18IS602B Chip Select Function

shubhatr_23 — Tue, 07 Apr 2020 10:42:28 GMT

Hi,

I want to interface SC18IS602B with DAC AD5504. For this Chip Select has to toggle(low to high) after 16bits of data is transmitted. What is the behavior of Chip Select pin on SC18IS602B? Will it toggle from low to high after each data byte is transmitted or after all data bytes in the buffer (up to 200 bytes) are transmitted? There is no timing diagram given in the data sheet.

Thanks in advance.

Re: SC18IS602B Chip Select Function

TomasVaverka — Tue, 07 Apr 2020 19:02:39 GMT

Hi Shreya,

The SSx outputs on the SC18IS602B are all low-true. They all are high when idle and only one (the selected one) is low when transferring all the data - in your case 2 bytes.

Best regards,

Tomas

Re: SC18IS602B Chip Select Function

shubhatr_23 — Wed, 22 Apr 2020 09:38:23 GMT

Hi Thomas,

Thanks for the reply. It would be really helpful if you can share a timing diagram for the same.

Thanks.