JAJSEC1C November 2019 – July 2020 ADS8686S
PRODUCTION DATA
The ADS8686S on-chip registers can be read to by using the serial interface in software mode. The register data content are shared only on the SDOA line irrespective of the serial 1-wire or serial 2-wire mode of operation. A register read is performed by issuing a register read command along with the register address followed by an additional SPI command that can be either a valid command or no operation (NOP). Table 7-12 shows the format for a read command. Bit D15 must be set to 0 to select a read command. The D[14:9] bits contain the register address. The subsequent nine bits (D[8:0]) are ignored. See the Section 7.6 section for a complete list of register addresses. Figure 7-32 shows a typical serial read command.
MSB | LSB | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
D15 | D14 | D13 | D12 | D11 | D10 | D9 | D8 | D7 | D6 | D5 | D4 | D3 | D2 | D1 | D0 |
W/ R | REGADDR[5:0] | Data[8:0] | |||||||||||||
0 | Register address | Do not care |