The TPS23882B provides port remapping capability, from the logical ports to the physical channels and pins.

The remapping is between any channel of a 4-port group (1 to 4, 5 to 8).

The following example is applicable to 0x26 register = 00111001, 00111001b.

• Logical port 1 (5) ↔ Physical channel 2 (6)
• Logical port 2 (6) ↔ Physical channel 3 (7)
• Logical port 3 (7) ↔ Physical channel 4 (8)
• Logical port 4 (8) ↔ Physical channel 1 (5)

If the TPS23882B receives an incorrect configuration, it ignores the incorrect configuration and retains the previous configuration. The ACK is sent as usual at the end of communication. For example, if the same remapping code is received for more than one port, then a read back of the Re-Mapping register (0x26) is the last valid configuration.

Note that if an IC reset command (1Ah register) is received, the port remapping configuration is kept unchanged. However, if there is a Power-on Reset or if the RESET pin is activated, the Re-Mapping register is reinitialized to a default value.