5 TPLD Serial Communications

TPLD2001 includes an I2C serial communication module able to read and write user registers space including the ASM. Access to the ASM is a straightforward procedure consisting of just putting the Serial Communications Element in the design and configuring the I2C peripheral address that is used to talk with the TPLD. Nothing else must be done either with internal electrical connections or additional configurations. The ASM internal addresses are from 0x50 to 0x58, and all the additional details of the FSM can be found in the TPLD2001 datasheet. A change in the color of the RGB LED can be achieved by modifying the value if the FSM registers, so any of the 16.7 million colors can be generated.

Figure 5-1 shows the I2C module and the parameters available. In this example, the I2C address is set to 0x7.

Figure 5-1 I2C Module and Parameters