ADS1256: SPI Timing from DIN to DOUT

Cyril Bouhallier

Prodigy 30 points

Part Number: ADS1256
Other Parts Discussed in Thread: ADS124S08,

Hi,

I have inherited the code from someone who left the company and I am taking the code.

The code is a SPI driver of the ADS1256 in VHDL that I am adapting now to ADS124S08

So I would to know what is the equivalent of :

t6 : Delay from last SCLK edge for DIN to first SCLK rising edge for DOUT: RDATA, RDATAC,
RREG Commands of 50 τCLKIN

in the ADS124S08 ... I have not found an equivalent timing

Thank you

over 2 years ago

0 Bryan Lizon86 over 2 years ago

TI__Mastermind 34991 points

Hi Cyril,

There is no equivalent delay time for the ADS124S08. You can see in Table 7.6 in the ADS124S08 datasheet that the "delay time between bytes or commands" is 0 ns. Moreover, Section 9.5.4.2 shows and states that data on DOUT occurs on the first SCLK rising edge after the command on DIN.

-Bryan

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ADS1256: SPI Timing from DIN to DOUT