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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
TMS5501 Multifunction Input/Output Controller emulation
**********************************************************************
_____ _____
Vbb 1 |* \_/ | 40 XMT
Vcc 2 | | 39 XI0
Vdd 3 | | 38 XI1
VSS 4 | | 37 XI2
RCV 5 | | 36 XI3
D7 6 | | 35 XI4
D6 7 | | 34 XI5
D5 8 | | 33 XI6
D4 9 | | 32 XI7
D3 10 | | 31 _XO7
D2 11 | TMS5501 | 30 _XO6
D1 12 | | 29 _XO5
D0 13 | | 28 _XO4
A0 14 | | 27 _XO3
A1 15 | | 26 _XO2
A2 16 | | 25 _XO1
A3 17 | | 24 _XO0
CE 18 | | 23 INT
SYNC 19 | | 22 SENS
phi1 20 |_____________| 21 phi2
**********************************************************************/
#ifndef MAME_MACHINE_TMS5501_H
#define MAME_MACHINE_TMS5501_H
#pragma once
#include "diserial.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> tms5501_device
class tms5501_device : public device_t,
public device_serial_interface
{
public:
// construction/destruction
tms5501_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
auto int_callback() { return m_write_int.bind(); }
auto xmt_callback() { return m_write_xmt.bind(); }
auto xi_callback() { return m_read_xi.bind(); }
auto xo_callback() { return m_write_xo.bind(); }
void rcv_w(int state);
void sens_w(int state);
void xi7_w(int state);
uint8_t get_vector();
virtual void io_map(address_map &map);
uint8_t rb_r();
uint8_t xi_r();
uint8_t rst_r();
uint8_t sta_r();
void cmd_w(uint8_t data);
void rr_w(uint8_t data);
void tb_w(uint8_t data);
void xo_w(uint8_t data);
void mr_w(uint8_t data);
void tmr_w(offs_t offset, uint8_t data);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_serial_interface overrides
virtual void tra_callback() override;
virtual void tra_complete() override;
virtual void rcv_complete() override;
TIMER_CALLBACK_MEMBER(timer_expired);
private:
enum
{
TIMER_1 = 0,
TIMER_2,
TIMER_3,
TIMER_4,
TIMER_5
};
enum
{
IRQ_TMR1 = 0x01,
IRQ_TMR2 = 0x02,
IRQ_SENS = 0x04,
IRQ_TMR3 = 0x08,
IRQ_RB = 0x10,
IRQ_TB = 0x20,
IRQ_TMR4 = 0x40,
IRQ_TMR5 = 0x80,
IRQ_XI7 = 0x80
};
enum
{
STA_FE = 0x01,
STA_OE = 0x02,
STA_SR = 0x04,
STA_RBL = 0x08,
STA_XBE = 0x10,
STA_IP = 0x20,
STA_FBD = 0x40,
STA_SBD = 0x80
};
enum
{
CMD_RST = 0x01,
CMD_BRK = 0x02,
CMD_XI7 = 0x04,
CMD_IAE = 0x08,
CMD_TST1 = 0x10,
CMD_TST2 = 0x20
};
enum
{
RR_110 = 0x01,
RR_150 = 0x02,
RR_300 = 0x04,
RR_1200 = 0x08,
RR_2400 = 0x10,
RR_4800 = 0x20,
RR_9600 = 0x40,
RR_STOP = 0x80
};
static const uint8_t rst_vector[];
void set_interrupt(uint8_t mask);
void check_interrupt();
devcb_write_line m_write_int;
devcb_write_line m_write_xmt;
devcb_read8 m_read_xi;
devcb_write8 m_write_xo;
uint8_t m_irq;
uint8_t m_rb;
uint8_t m_sta;
uint8_t m_cmd;
uint8_t m_rr;
uint8_t m_tb;
uint8_t m_mr;
int m_sens;
int m_xi7;
emu_timer *m_timer[5];
};
// device type definition
DECLARE_DEVICE_TYPE(TMS5501, tms5501_device)
#endif // MAME_MACHINE_TMS5501_H
|