SLLSFB2 April 2020 TUSB1146
PRODUCTION DATA.
The TUSB1146 is in I2C mode when I2C_EN is not equal to “0” or when I2C_EN = "F" and EQ0 = "0" and EQ1 = "0". The same configurations defined in GPIO mode are also available in I2C mode. The TUSB1146 USB3.1 and DisplayPort configuration is controlled based on Table 5. The AUXp or AUXn to SBU1 or SBU2 mapping control is based on Table 6.
| REGISTERS | TUSB1146 CONFIGURATION | VESA DisplayPort ALT MODE
DFP_D CONFIGURATION |
||
|---|---|---|---|---|
| CTLSEL1 | CTLSEL0 | FLIPSEL | ||
| 0 | 0 | 0 | Power Down | — |
| 0 | 0 | 1 | Power Down | — |
| 0 | 1 | 0 | One Port USB 3.1 - No Flip | — |
| 0 | 1 | 1 | One Port USB 3.1 – With Flip | — |
| 1 | 0 | 0 | 4 Lane DP - No Flip | C and E |
| 1 | 0 | 1 | 4 Lane DP – With Flip | C and E |
| 1 | 1 | 0 | One Port USB 3.1 + 2 Lane DP- No Flip | D |
| 1 | 1 | 1 | One Port USB 3.1 + 2 Lane DP– With Flip | D |
| REGISTERS | MAPPING | |||
|---|---|---|---|---|
| AUX_SBU_OVR1 | AUX_SBU_OVR0 | CTLSEL1 | FLIPSEL | |
| 0 | 0 | 1 | 0 | AUXp → SBU1
AUXn → SBU2 |
| 0 | 0 | 1 | 1 | AUXp → SBU2
AUXn → SBU1 |
| 0 | 0 | 0 | X | Open |
| 0 | 1 | X | X | AUXp → SBU1
AUXn → SBU2 |
| 1 | 0 | X | X | AUXp → SBU2
AUXn → SBU1 |
| 1 | 1 | X | X | Open |