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  |