The internal register of the ADS54T01 can be programmed following these steps:
- Drive SDENB pin low
- Set the R/W bit to "0" (bit A7 of the 8-bit address)
- Initiate a serial interface cycle specifying the address of the register (A6 to A0) whose content has to be written
- Write 16-bit data which is latched on the rising edge of SCLK
Table 8-6 Timing RequirementsPARAMETER | MIN | TYP(1) | MAX | UNIT |
---|
fSCLK | SCLK frequency (equal to 1/tSCLK) | >DC | | 20 | MHz |
tSLOADS | SDENB to SCLK setup time | 25 | | | ns |
tSLOADH | SCLK to SDENB hold time | 25 | | | ns |
tDSU | SDIO setup time | 25 | | | ns |
tDH | SDIO hold time | 25 | | | ns |
(1) Typical values at +25°C; minimum and maximum values across the full temperature range: TMIN = –40°C to TMAX = +85°C, AVDD3V = 3.3 V, AVDD, DRVDD = 1.9 V, unless otherwise noted.