DSPS time need to awake from edge interrupt.

Hi

i've my custom DSPS where i use a P06 as input interrupt, in a way that the master cpu generates a falling edge and sends to the DA14580 over UART, new string which is updated to advertising at rising edge , all work properly in debug mode , but once i compile the application with default_sleep mode= EXT_SLEEP, i need to put a breakpoint on the Master CPU between falling edge and data transmitt, in order the DA14580 to pick properly the data, that rings a bell that time need to awake DA14580 is not small....
the master cpu is carrying a 5ms delay from falling edge till beginning transmitting data (which should be enough), but it still does not work, the question is, which is the time need for arch_disable_sleep(); on the falling edge of DA14580 in order to be ready to receive UART data?

//-------------------- this is the code of the interrupt ---------------------
void gpioctrl_callback(void)
{
NVIC_DisableIRQ(GPIO0_IRQn); // Disable this interrupt
if (GPIO_GetPinStatus(GPIO_PORT_0, GPIO_CTRL) == false){
// falling edge
AdvLen=0;
if (app_default_sleep_mode == ARCH_EXT_SLEEP_ON)
arch_disable_sleep(); // arch_force_active_mode();
// set interrupt to detect rising edge of GPIO_CTRL
GPIO_EnableIRQ(GPIO_PORT_0, GPIO_CTRL, GPIO0_IRQn, 0, 1, 0);
}else{
// rising edge, pick new advertising data and publish it.
if (SpsState==0){
if (AdvLen){
if (BuffAdv[0]=='F' && BuffAdv[1]=='L'){
FlightMode=1;
app_easy_gap_advertise_stop();
AdvLen=0;
}else{
// #DL16 try change advertising message .
if (FlightMode>=1){
FlightMode=0;
app_easy_gap_undirected_advertise_start();
}else{
app_easy_gap_advertise_stop();
}
}
}
if (app_default_sleep_mode == ARCH_EXT_SLEEP_ON)
arch_set_extended_sleep();
}
uart_txdata_setf(0x06); // Echo ACK
//AdvLen=0;
//Set interrupt to detect falling of P06
GPIO_EnableIRQ(GPIO_PORT_0, GPIO_CTRL, GPIO0_IRQn, 1, 0, 0);
}
NVIC_ClearPendingIRQ(GPIO0_IRQn);
NVIC_EnableIRQ(GPIO0_IRQn); // Enable this interrupt
}

Regards