mcpwm_timer_synci_cfg_reg_t::::timer1_syncisel field

timer1_syncisel : R/W; bitpos: [5:3]; default: 0; select sync input for PWM timer1, 1: PWM timer0 sync_out, 2: PWM timer1 sync_out, 3: PWM timer2 sync_out, 4: SYNC0 from GPIO matrix, 5: SYNC1 from GPIO matrix, 6: SYNC2 from GPIO matrix, other values: no sync input selected