This slide illustrates how Configuration IDs are accessed during startup. In this example, two Config IDs are stored in OTP; namely Config ID 1 and Config ID 4. A 4+0 design is stored as “Config ID 1” using a 1,800 Ω pin strap resistor. Moreover, the 4+0 design is then updated, resulting in a new Config ID 1 store. Finally, a 3+1 design configuration is stored in Config ID 3 using a 3,300 Ω pin strap resistor. As can be seen in the memory allocation diagram in the middle, three OTP slots have been used. It is important to recognize that during startup only the latest Config ID 1 value will be loaded if a 1,800 Ω pin strap resistor is used. Subsequently, a 3,300 Ω resistor would load the configuration stored in Config ID 4.