TAS6754-Q1: I2C Address Format

Part Number: TAS6754-Q1

Tool/software:

HI TI Expert,

From TAS6754-Q1 DS that we have 8 different option for I2C address.

1. Is it based on 7-bit or 8-bit? 

2. If it's refer to 8 bit, since we usually use 7-bit to configure it, how to switch from 8-bit format to 7-bit format? For example, 0xE0 will become 0x70 in 7-bit?

3. Based on Figure 7-23, if above idea is correct(0xE0[8 bit]->0x70[7-bit]) then the below 7-Bit Target Address (7~1) refer to 1110000 = 0x70?

Pleas help me to understand this.

Thank you.