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// license:BSD-3-Clause
// copyright-holders:hap
/*
Sanyo LC7580 LCD Driver
*/
#ifndef MAME_VIDEO_LC7580_H
#define MAME_VIDEO_LC7580_H
#pragma once
/*
quick pinout reference (64-pin QFP)
pin desc
------------------------------
1-54 = S1-S53 segment outputs, pin 24 N/C, pins 45-54 also used with AD/DSP
55 = OSC
56 = Vdd
57 = _INH
58 = Vlcd
59 = Vss
60 = CE \
61 = CLK | serial input
62 = DATA /
63,64 = COM1/COM2 outputs
*/
class lc7580_device : public device_t, public device_nvram_interface
{
public:
lc7580_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
// configuration helpers
auto write_segs() { return m_write_segs.bind(); } // S pins, COM1/COM2 in offset
void data_w(int state) { m_data = (state) ? 1 : 0; }
void clk_w(int state);
void ce_w(int state);
void inh_w(int state) { m_blank = bool(state); refresh_output(); }
protected:
lc7580_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock);
// device_t implementation
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override { refresh_output(); }
// device_nvram_interface implementation
virtual void nvram_default() override { ; }
virtual bool nvram_read(util::read_stream &file) override;
virtual bool nvram_write(util::write_stream &file) override;
private:
void refresh_output();
int m_data;
int m_ce;
int m_clk;
bool m_blank;
u64 m_shift;
u64 m_latch[2];
// callbacks
devcb_write64 m_write_segs;
};
class lc7582_device : public lc7580_device
{
public:
lc7582_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
};
DECLARE_DEVICE_TYPE(LC7580, lc7580_device)
DECLARE_DEVICE_TYPE(LC7582, lc7582_device)
#endif // MAME_VIDEO_LC7580_H
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