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+// license:BSD-3-Clause
+// copyright-holders:Curt Coder
+/**********************************************************************
+
+ TMS5501 Multifunction Input/Output Controller emulation
+
+ Copyright MESS Team.
+ Visit http://mamedev.org for licensing and usage restrictions.
+
+**********************************************************************
+ _____ _____
+ 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
+
+**********************************************************************/
+
+#pragma once
+
+#ifndef __TMS5501__
+#define __TMS5501__
+
+#include "emu.h"
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_TMS5501_IRQ_CALLBACK(_write) \
+ devcb = &tms5501_device::set_irq_wr_callback(*device, DEVCB2_##_write);
+
+#define MCFG_TMS5501_XMT_CALLBACK(_write) \
+ devcb = &tms5501_device::set_xmt_wr_callback(*device, DEVCB2_##_write);
+
+#define MCFG_TMS5501_XI_CALLBACK(_read) \
+ devcb = &tms5501_device::set_xi_rd_callback(*device, DEVCB2_##_read);
+
+#define MCFG_TMS5501_XO_CALLBACK(_write) \
+ devcb = &tms5501_device::set_xo_wr_callback(*device, DEVCB2_##_write);
+
+
+
+//**************************************************************************
+// 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, UINT32 clock);
+
+ template<class _Object> static devcb2_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_irq.set_callback(object); }
+ template<class _Object> static devcb2_base &set_xmt_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_xmt.set_callback(object); }
+ template<class _Object> static devcb2_base &set_xi_rd_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_read_xi.set_callback(object); }
+ template<class _Object> static devcb2_base &set_xo_wr_callback(device_t &device, _Object object) { return downcast<tms5501_device &>(device).m_write_xo.set_callback(object); }
+
+ virtual DECLARE_ADDRESS_MAP(io_map, 8);
+
+ DECLARE_WRITE_LINE_MEMBER( rcv_w );
+
+ DECLARE_WRITE_LINE_MEMBER( sens_w );
+ DECLARE_WRITE_LINE_MEMBER( xi7_w );
+
+ UINT8 get_vector();
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+
+ // device_serial_interface overrides
+ virtual void tra_callback();
+ virtual void tra_complete();
+ virtual void rcv_callback();
+ virtual void rcv_complete();
+ virtual void input_callback(UINT8 state);
+
+ DECLARE_READ8_MEMBER( rb_r );
+ DECLARE_READ8_MEMBER( xi_r );
+ DECLARE_READ8_MEMBER( rst_r );
+ DECLARE_READ8_MEMBER( sta_r );
+ DECLARE_WRITE8_MEMBER( cmd_w );
+ DECLARE_WRITE8_MEMBER( rr_w );
+ DECLARE_WRITE8_MEMBER( tb_w );
+ DECLARE_WRITE8_MEMBER( xo_w );
+ DECLARE_WRITE8_MEMBER( mr_w );
+ DECLARE_WRITE8_MEMBER( tmr_w );
+
+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 rst_vector[];
+
+ void set_interrupt(UINT8 mask);
+ void check_interrupt();
+
+ devcb2_write_line m_write_irq;
+ devcb2_write_line m_write_xmt;
+ devcb2_read8 m_read_xi;
+ devcb2_write8 m_write_xo;
+
+ UINT8 m_irq;
+ UINT8 m_rb;
+ UINT8 m_sta;
+ UINT8 m_cmd;
+ UINT8 m_rr;
+ UINT8 m_tb;
+ UINT8 m_mr;
+
+ int m_sens;
+ int m_xi7;
+
+ emu_timer *m_timer[5];
+};
+
+
+// device type definition
+extern const device_type TMS5501;
+
+
+
+#endif