protected virtual void set_rmcr(uint8_t data)
{
if (m_rmcr == data)
{
return;
}
m_rmcr = data;
switch ((m_rmcr & M6801_RMCR_CC_MASK) >> 2)
{
case 0:
LOGSER("SCI: Using external serial clock: false\n");
m_sci_timer.enable(false);
m_use_ext_serclock = false;
break;
case 3: // external clock
LOGSER("SCI: Using external serial clock: true\n");
m_use_ext_serclock = true;
m_sci_timer.enable(false);
break;
case 1:
case 2:
{
int divisor = M6801_RMCR_SS[m_rmcr & M6801_RMCR_SS_MASK];
attotime period = cycles_to_attotime((uint64_t)divisor);
LOGSER("SCI: Setting serial rate, Divisor: {0} Hz: {1}\n", divisor, period.as_hz());
m_sci_timer.adjust(period, 0, period);
m_use_ext_serclock = false;
}
break;
}
}
void set_rmcr(uint8_t data)
{
if (m_rmcr == data)
{
return;
}
m_rmcr = data;
switch ((m_rmcr & M6801_RMCR_CC_MASK) >> 2)
{
case 0:
m_sci_timer.enable(false);
m_use_ext_serclock = false;
break;
case 3: // external clock
m_use_ext_serclock = true;
m_sci_timer.enable(false);
break;
case 1:
case 2:
{
int divisor = M6801_RMCR_SS[m_rmcr & M6801_RMCR_SS_MASK];
attotime period = cycles_to_attotime((u64)divisor);
m_sci_timer.adjust(period, 0, period);
m_use_ext_serclock = false;
}
break;
}
}