Target Capabilities 0 Register.
| MAPCNT | Number of mapped target addresses supported. |
| I2C_10BADDR | I2C 10-bit address support. |
| I2C_SWRST | I2C Software Reset Support. |
| I2C_DEVID | I2C Device ID Support. |
| FIFO32_REG | FIFO 32 registers available. |
| EXTIBI | Extended IBI data support. |
| EXTIBI_REG | Extended IBI data register support. |
| HDRBT_LANES | Multi-lane support for HDR-BT mode. |
| CCC_V1_1 | CCC V1.1 Support. |
| TARG_RST | Target Reset Support. |
| GROUPADDR | Group address support. |
| AASA_CCC | SETAASA CCC Support. |
| T2T_SUBSC | Target-to-target subscriber support. |
| T2T_WR | Target-to-target write support. |