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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_74377.cpp
*
* DM74377: Octal D Flip-Flop With Enable
*
* +--------------+
* /E |1 ++ 20| VCC
* Q0 |2 19| Q7
* D0 |3 18| D7
* D1 |4 74377 17| D6
* Q1 |5 16| Q6
* Q2 |6 15| Q5
* D2 |7 14| D5
* D3 |8 13| D4
* Q3 |9 12| Q4
* GND |10 11| CP
* +--------------+
*
* DM74378: Hex D Flip-Flop With Enable
*
* +--------------+
* /E |1 ++ 16| VCC
* Q0 |2 15| Q5
* D0 |3 14| D5
* D1 |4 74378 13| D4
* Q1 |5 12| Q4
* D2 |6 11| D3
* Q2 |7 10| Q3
* GND |8 9| CP
* +--------------+
*
* DM74379: 4-bit D Flip-Flop With Enable
*
* +--------------+
* /E |1 ++ 16| VCC
* Q0 |2 15| Q3
* /Q0 |3 14| /Q3
* D0 |4 74379 13| D3
* D1 |5 12| D2
* /Q1 |6 11| /Q2
* Q1 |7 10| Q2
* GND |8 9| CP
* +--------------+
*
* Naming conventions follow Motorola datasheet
*
*/
#include "nl_base.h"
namespace netlist
{
namespace devices
{
constexpr const std::array<netlist_time, 2> delay = { NLTIME_FROM_NS(25), NLTIME_FROM_NS(25) };
NETLIB_OBJECT(74377_GATE)
{
NETLIB_CONSTRUCTOR(74377_GATE)
, m_E(*this, "E", NETLIB_DELEGATE(inputs))
, m_D(*this, "D", NETLIB_DELEGATE(inputs))
, m_CP(*this, "CP", NETLIB_DELEGATE(inputs))
, m_Q(*this, "Q")
, m_QQ(*this, "QQ")
, m_cp(*this, "m_cp", 0)
, m_power_pins(*this)
{
}
NETLIB_RESETI()
{
}
private:
NETLIB_HANDLERI(inputs)
{
netlist_sig_t last_cp = m_cp;
m_cp = m_CP();
if (!m_E() && !last_cp && m_cp)
{
netlist_sig_t d = m_D();
m_Q.push(d, delay[d]);
m_QQ.push(d ^ 1, delay[d ^ 1]);
}
}
logic_input_t m_E;
logic_input_t m_D;
logic_input_t m_CP;
logic_output_t m_Q;
logic_output_t m_QQ;
state_var_sig m_cp;
nld_power_pins m_power_pins;
};
NETLIB_DEVICE_IMPL(74377_GATE, "TTL_74377_GATE", "")
} //namespace devices
} // namespace netlist
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