3.14.3 Read
The table provided delineates the data transmitted by the client device (MTCH2120). At
the commencement of the communication process, the host device must input a 16-bit
memory address to specify the precise memory location from which data retrieval is
required. After the memory address input, the host device should await the
acknowledgment signal (“ack”) from the client device. Upon receipt of the “ack”, the
host device should reinitiate communication. This is followed by the host device
sequentially reading data from the client device. It is essential for the host device to
issue an 'ack' after each data read to maintain the flow of communication. The data
transmission from the client device will cease when the host device sends a 'not
acknowledged' signal (“nak”).
Users may utilize the "Repeated Start (R) bit" as an alternative to the stop (P) and start (S) bits to seamlessly continue communication.