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// license:BSD-3-Clause
// copyright-holders:smf
/***************************************************************************
National Semiconductor ADC12130 / ADC12132 / ADC12138
Self-calibrating 12-bit Plus Sign Serial I/O A/D Converters with MUX
and Sample/Hold
***************************************************************************/
#ifndef MAME_MACHINE_ADC1213X_H
#define MAME_MACHINE_ADC1213X_H
#pragma once
/***************************************************************************
MACROS / CONSTANTS
***************************************************************************/
class adc12138_device : public device_t
{
public:
typedef device_delegate<double (uint8_t input)> ipt_convert_delegate;
adc12138_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <typename... T> void set_ipt_convert_callback(T &&... args) { m_ipt_read_cb.set(std::forward<T>(args)...); }
void di_w(u8 data);
void cs_w(u8 data);
void sclk_w(u8 data);
void conv_w(u8 data = 0);
u8 do_r();
u8 eoc_r();
protected:
adc12138_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
void convert(int channel, int bits16, int lsbfirst);
ipt_convert_delegate m_ipt_read_cb;
private:
// internal state
int m_cycle;
int m_data_out;
int m_data_in;
int m_conv_mode;
int m_auto_cal;
int m_auto_zero;
int m_acq_time;
int m_data_out_sign;
int m_input_shift_reg;
int m_output_shift_reg;
int m_end_conv;
};
class adc12130_device : public adc12138_device
{
public:
adc12130_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
class adc12132_device : public adc12138_device
{
public:
adc12132_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
};
DECLARE_DEVICE_TYPE(ADC12138, adc12138_device)
DECLARE_DEVICE_TYPE(ADC12130, adc12130_device)
DECLARE_DEVICE_TYPE(ADC12132, adc12132_device)
#endif // MAME_MACHINE_ADC1213X_H
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