Have anyone used Si3210 ProSLIC IC

[sudhirkv]

I am using SI 3210 ProSLIC in my design and i dont have a perfect 1.024MHz clk, instead i derive a clock from my input 50MHZ clk of 1.0204 MHz and i am not able to access the ProSLIC. I saw the document of ProSLIC Initialization and i followed the steps as it is through a state machine. But still the SDO line of si 3210 is in high impedance. Pclk and FSync are in phase. i dont have any issues in having a seperate 1.024MHz clk in my design. Is there anything else i have to concentrate while accessing SPI of proslic.

Thanks in advance

 

[faiyaz]

Hey Sudhir,

Hi This is Faiyaz

Did you get solution to your below problem? I am having the same problem in my design. I am having total 6 Si3215 devices interfaced to a common SPI bus in individual chip select mode. SDO line remains in high impedence state when i communicate to 2-3 Si3215 devices out of 6.

What solution you applied to overcome this problem?

Thanks
Faiyaz

 

[sudhirkv]

Hi,

I have used only one ProSLIC. I guess if ur SDO is in high impedence then it must be a problem of the u r SPI controller. If u can try connecting only one ProSLIC then u can come to a conclusion that u r SPI controller is not a problem.

 

[alltimeuser]

i have issue with the si3210 in daisy chain mode

Hi;

I have issues with Si3210. i am using this with PIC32MX675F512L microcontroller as master SPI with the main clock is 72Mhz and spi clock is 12 Mhz,other SPI settings are CPE =1;CKE = 0; and operating in 8-bit mode. In our board 8 si3210 are connected in daisy chain mode.

In normal mode , i can able to do register read and write operation(i.e 2 cycle operation).But in case of Daisy chain mode write and read operation is not seems to be reliable, It takes 2 consecutive write and read operation to achieve the result.

My doubts here is:
1. How do i confirm whether my torget is configured for Daisy chain mode.
2, How do i confirm whether the read write opearation is happening on perticular chip.

Note: I am configuring Daisy chain during power up time, by writing 0x80 to SPIMODE register(zeroth register) this operation is 2 cycles only.

With regards
Nagesha
:?