SLASEC8B February 2017 – January 2019 PGA460-Q1
The response operation of the PGA460-Q1 UART interface is initiated with the master sending a response request. After the response request is received by the PGA460-Q1 device, the UART responds with the proper data of the command being requested. In a response operation, the master does not generate a checksum Field, rather it is generated by the PGA460-Q1.
Because the data direction changes (master device to PGA460-Q1 followed by PGA460-Q1 to master device) and because of the amount of processing time required by the PGA460-Q1 device to respond, a response delay time of 1-bit period occurs between the response request and the PGA460-Q1 response on the UART.
Figure 27 shows an example of the PGA460-Q1 response operation.