TIMERGROUP0 configuration register
| TG0_CLK_EN | Set 1 to enable timer_group0 apb clock |
| TG0_RST_EN | Set 0 to reset timer_group0 module |
| TG0_WDT_READY | Query this field after reset timer_group0 wdt module |
| TG0_TIMER0_READY | Query this field after reset timer_group0 timer0 module |
| TG0_TIMER1_READY | reserved |