SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Figure 26-35 is the HDQ1W block diagram.
Figure 26-35 HDQ1W Block DiagramThe HDQ_CTRL_STATUS[0] MODE bit allows selection between the HDQ and 1-Wire protocols. This bit is assumed static for design purposes. The configuration is in HDQ mode by default.
Figure 26-36 shows the protocol-dedicated register scheme.
Figure 26-36 Protocol Registers DescriptionThe receive and transmit operations of the HDQ1W module are performed with respect to the timing of the slower HDQ protocol. When the 1-Wire protocol is used, it runs at lower speed than its full capabilities, but is still able to meet the timing requirements and practical considerations.