22.3.5.1 Processing Time Requests

Before sending sensor data, a client can request additional processing time. This request can be used in an instance where the client needs additional time for analog-to-digital conversion or memory access. To request additional processing time, the client can hold the ACK signal low for an additional clock cycle. This, in turn, delays the Start bit, which is the indicator that additional processing time is requested.

If a device in point-to-point configuration consists of several clients, then all but the last client will pass through the data of their predecessor received at SLI and then send this to SLO following its own data. The client with the longest processing time should be used as the last client since it determines the total processing time.

Figure 22-11. Requests for Processing Time (Point-To-Point Configuration)