summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/machine/tms6100.h
blob: abfe114ada4160fb5dd80ff76855c776a5574cd3 (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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
// license:BSD-3-Clause
// copyright-holders:hap, Couriersud
/**********************************************************************************************

    Texas Instruments TMS6100 Voice Synthesis Memory (VSM)

***********************************************************************************************/

#ifndef __TMS6100_H__
#define __TMS6100_H__

#include "emu.h"


//**************************************************************************
//  INTERFACE CONFIGURATION MACROS
//**************************************************************************

// 4-bit mode (mask option)
// note: in 4-bit mode, use data_r, otherwise use data_line_r

#define MCFG_TMS6100_4BIT_MODE() \
	tms6100_device::enable_4bit_mode(*device);


// pinout reference

/*
    TMS6100:
                 +-----------------+
       VDD       |  1           28 |  NC
       NC        |  2           27 |  NC
       DATA/ADD1 |  3           26 |  NC
       DATA/ADD2 |  4           25 |  NC
       DATA/ADD4 |  5           24 |  NC
       DATA/ADD8 |  6           23 |  NC
       CLK       |  7           22 |  NC
       NC        |  8           21 |  NC
       NC        |  9           20 |  NC
       M0        | 10           19 |  NC
       M1        | 11           18 |  NC
       NC        | 12           17 |  NC
       /CS       | 13           16 |  NC
       VSS       | 14           15 |  NC
                 +-----------------+


    TMS6125: two types known

                 +---------+                        +---------+
       DATA/ADD1 | 1    16 |  NC          DATA/ADD1 | 1    16 |  NC
       DATA/ADD2 | 2    15 |  NC          DATA/ADD2 | 2    15 |  NC
       DATA/ADD4 | 3    14 |  NC          DATA/ADD4 | 3    14 |  NC
       RCK       | 4    13 |  NC          DATA/ADD8 | 4    13 |  NC
       CLK       | 5    12 |  VDD         CLK       | 5    12 |  VDD
       DATA/ADD8 | 6    11 |  CS          NC        | 6    11 |  /CS
       NC        | 7    10 |  M1          NC        | 7    10 |  M1
       M0        | 8     9 |  VSS         M0        | 8     9 |  VSS
                 +---------+                        +---------+         


    Mitsubishi M58819S EPROM Interface:
    It is a clone of TMS6100, but external EPROM instead

                 +-----------------+
       AD0       |  1           40 |  AD1
       VDDl      |  2           39 |  AD2
       VDD       |  3           38 |  AD3
       A0        |  4           37 |  NC
       NC        |  5           36 |  AD4
       NC        |  6           35 |  AD5
       A1        |  7           34 |  AD6
       A2        |  8           33 |  AD7
       A3/Q      |  9           32 |  AD8
       CLK       | 10           31 |  AD9
       POW       | 11           30 |  AD10
       SL        | 12           29 |  AD11
       C0        | 13           28 |  AD12
       C1        | 14           27 |  AD13
       NC        | 15           26 |  D7
       NC        | 16           25 |  NC
       VSS       | 17           24 |  D6
       D0        | 18           23 |  D5
       D1        | 19           22 |  D4
       D2        | 20           21 |  D3
                 +-----------------+
*/


//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

class tms6100_device : public device_t
{
public:
	tms6100_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);
	tms6100_device(const machine_config &mconfig, device_type type, std::string name, std::string tag, device_t *owner, UINT32 clock, std::string shortname, std::string source);

	static void enable_4bit_mode(device_t &device) { downcast<tms6100_device &>(device).m_4bit_mode = true; }

	DECLARE_WRITE_LINE_MEMBER(m0_w);
	DECLARE_WRITE_LINE_MEMBER(m1_w);
	DECLARE_WRITE_LINE_MEMBER(rck_w);
	DECLARE_WRITE_LINE_MEMBER(cs_w);
	DECLARE_WRITE_LINE_MEMBER(clk_w);

	DECLARE_WRITE8_MEMBER(add_w);
	DECLARE_READ8_MEMBER(data_r); // 4bit
	DECLARE_READ_LINE_MEMBER(data_line_r);

protected:
	// device-level overrides
	virtual void device_start() override;
	
	void handle_command(UINT8 cmd);

	// internal state
	required_region_ptr<UINT8> m_rom;
	bool m_reverse_bits;
	bool m_4bit_mode;
	
	UINT32 m_rommask;
	UINT32 m_address;   // internal address + chipselect
	UINT8 m_sa;         // romdata shift register
	UINT8 m_count;      // TB/LA counter (-> PLA)
	UINT8 m_prev_cmd;   // previous handled command
	UINT8 m_prev_m;     // previous valid m0/m1 state

	UINT8 m_add;        // ADD/DATA pins input
	UINT8 m_data;       // ADD/DATA pins output
	int m_m0;
	int m_m1;
	int m_cs;           // chipselect pin
	int m_clk;          // CLK pin
	int m_rck;          // RCK pin (mask/gate to CLK?)
};


class m58819_device : public tms6100_device
{
public:
	m58819_device(const machine_config &mconfig, std::string tag, device_t *owner, UINT32 clock);

protected:
	// device-level overrides
	virtual void device_start() override;
};


extern const device_type TMS6100;
extern const device_type M58819;


#endif /* __TMS6100_H__ */