PI5USB30216C_APPNOTE_050316.pdf

Pericom's PI5USB30216C is a Type-C Configuration Channel (CC) logic IC. The device implements CC pins for port

attachment, detachment, cable orientation, role detection, and Type-C Current Mode control. The device supports

host only mode (Source/DFP), device only mode (Sink/UFP) and dual role port (DRP/Try.SNK DRP and Try.SRC

DRP) modes with automatic configuration based on the voltage levels detected on CC pins. The device supports both

pin and I2C control mode. I2C control mode allows higher flexibility of port control and communications.

mode is active.

The settings of port role are referred to byte2 of I2C Register Description on Pericom datasheet.

Please noted that PI5USB30216C does not have offset byte*. All registers must be read or written sequentially from

0x01. For example, in order to read address 0x04, PI5USB30216C I2C registers must be read sequentially from 0x01,

1. INTB asserted LOW, indicating Type-C port status change.

2. Processor first masks PI5USB30216C interrupt by writing a „1‟ to Bit 0 of Control Register(0x02). INTB returned

Hi-Z.

3. Processor then read Register(0x01), Control Register (0x02), Interrupt Register(0x03) and CC Status

Register(0x04). Interrupt Register(0x03) indicates if an attach or detach event was detected. All interrupt flags in