blob: b5b8f76f0c7795860f8b5a2e6da792bd34321591 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
// license:BSD-3-Clause
// copyright-holders: AJR
/**********************************************************************
OKI MSM6253 8-Bit 4-Channel A/D Converter
***********************************************************************
____ ____
/OSC OUT 1 |* \_/ | 18 OSC OUT
D-GND 2 | | 17 OSC IN
A-GND 3 | | 16 /RD
IN0 4 | | 15 /WR
IN1 5 | MSM6253RS | 14 ALE
IN2 6 | | 13 /CS
IN3 7 | | 12 A1
Vr 8 | | 11 A0
Vdd 9 |___________| 10 S.O.
**********************************************************************/
#ifndef MAME_MACHINE_MSM6253_H
#define MAME_MACHINE_MSM6253_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> msm6253_device
class msm6253_device : public device_t
{
public:
typedef device_delegate<ioport_value ()> port_read_delegate;
// construction/destruction
msm6253_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
// configuration
template <unsigned P> void set_input_tag(const char *tag) { m_analog_ports[P].set_tag(tag); }
template <unsigned P, typename... T> void set_input_cb(T &&... args) { m_analog_input_cb[P].set(std::forward<T>(args)...); }
// write handlers
void address_w(offs_t offset, u8 data);
void select_w(offs_t offset, u8 data);
// read handlers
bool shift_out();
u8 d0_r(address_space &space);
u8 d7_r(address_space &space);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
private:
// helpers
template<int port> ioport_value port_read();
// input configuration
optional_ioport_array<4> m_analog_ports;
port_read_delegate::array<4> m_analog_input_cb;
// private data
u8 m_shift_register;
};
// device type definition
DECLARE_DEVICE_TYPE(MSM6253, msm6253_device)
#endif // DEVICES_MACHINE_MSM6253_H
|