Hello,
nrf5340 datasheet -> nRF5340_OPS_v0.5
section: 7.1.26.7 Sending custom instructions (Page: 383)
1. we can send an instruction consisting of a one-byte opcode and up to 8 bytes of additional data and to read its response.
2. After a custom instruction has been sent, the CINSTRDAT0 and CINSTRDAT1 will contain the response bytes from the custom instruction.
Question is if the data in CINSTRDAT0 and CINSTRDAT1 contain ONLY bits that come in via SIO1 as shown in Figure 116 in the very next page ? The figure seems to indicate that no data is expected (or is ignored) unless it's coming in via SIO1. and this is not really clear from in the text in 7.1.26.7 section. Can you clarify ?
what if a slave device sends data back on SIO0 (there are a few display controllers that do that).. is there anything we can do to access data that is coming via SIO0 ?
