void i8251_device::receive_clock()
{
/* receive enable? */
if (BIT(m_command, 2))
{
const bool sync = is_receive_register_synchronized();
if (sync)
{
--m_rxc_count;
if (m_rxc_count)
return;
}
//logerror("I8251\n");
/* get bit received from other side and update receive register */
receive_register_update_bit(m_rxd);
if (is_receive_register_synchronized())
m_rxc_count = sync ? m_br_factor : (3 * m_br_factor / 2);
if (is_receive_register_full())
{
receive_register_extract();
receive_character(get_received_char());
}
}
}
void i8251_device::receive_clock()
{
/* receive enable? */
if (m_command & (1<<2))
{
//logerror("I8251\n");
/* get bit received from other side and update receive register */
if(m_in_rxd_func.isnull())
receive_register_update_bit(get_in_data_bit());
else
receive_register_update_bit(m_in_rxd_func());
if (is_receive_register_full())
{
receive_register_extract();
receive_character(get_received_char());
}
}
}
void i8251_device::receive_clock()
{
m_rxc_count++;
if (m_rxc_count == m_br_factor)
m_rxc_count = 0;
else
return;
/* receive enable? */
if (m_command & (1<<2))
{
//logerror("I8251\n");
/* get bit received from other side and update receive register */
receive_register_update_bit(m_rxd);
if (is_receive_register_full())
{
receive_register_extract();
receive_character(get_received_char());
}
}
}
