SYSCFG configuration register 1
| MEM_MODE | Memory mapping selection bits |
| PA11_RMP | PA11_RMP |
| PA12_RMP | PA11 and PA12 remapping bit. |
| IR_POL | IR output polarity selection |
| IR_MOD | IR Modulation Envelope signal selection. |
| BOOSTEN | I/O analog switch voltage booster enable |
| UCPD1_STROBE | Strobe signal bit for UCPD1 |
| UCPD2_STROBE | Strobe signal bit for UCPD2 |
| I2C_PBx_FMP | Fast Mode Plus (FM+) driving capability activation bits |
| I2C_PB7_FMP | I2C_PB7_FMP |
| I2C_PB8_FMP | I2C_PB8_FMP |
| I2C_PB9_FMP | I2C_PB9_FMP |
| I2C1_FMP | FM+ driving capability activation for I2C1 |
| I2C2_FMP | FM+ driving capability activation for I2C2 |
| I2C_PA9_FMP | Fast Mode Plus (FM+) driving capability activation bits |
| I2C_PA10_FMP | Fast Mode Plus (FM+) driving capability activation bits |
| I2C3_FMP | I2C3_FMP |