The Registers tab interacts with the registers and bits within the TMP4719 device. For more information on each register/bit, click on a register name to see what each bit defines.

The Auto Read dropdown box configures the polling rate of the register contents. By default, the MCU polls the registers with a 100ms delay. When Auto Read is Off, click Read Register to fetch the contents of the selected register. Read All Registers can be used to fetch the contents of all registers at once.

By default, the Write Register button is grayed and disabled when the Write Mode button is set to Immediate. Immediate mode triggers a Write operation each time a register is modified. When Deferred mode is selected, the Write Register button is enabled, and write operations are not performed unless the Write Register button is clicked.

These settings give the user total control over I²C Bus activity, and enable individual transactions to be easily observed with an oscilloscope, logic analyzer, or bus-sniffing device.

Figure 3-5 Registers