BQ34Z100如何控制5个灯

这个是DATASHEET上的原理图，我想问的是P1和P2的数据发送怎么控制？这个芯片只有I2C和HDQ两种通信方式，是通过他们控制的吗？

是的，LED/COMM Configuration Bits [Bits 0, 1, 2 ] 如果为3 = External LEDs with I2C 控制, 如果为4 = External LEDs with HDQ 控制.

Upon detecting A/D value representing 2.5 V on the VEN pin, External LED mode will transmit the RSOC into an
SN74HC164 (for 2~8 LEDs) or two SN74HC164 devices (for 9~16 LEDs) using a bit-banged approach with RC2 (P1)
as Clock and RC0 (P2) as Data.

谢谢