RASCSI/cpp/hal/gpiobus_fullspec.h

//---------------------------------------------------------------------------
//
//	SCSI Target Emulator RaSCSI Reloaded
//	for Raspberry Pi
//
//	Powered by XM6 TypeG Technology.
//	Copyright (C) 2016-2020 GIMONS
//
//---------------------------------------------------------------------------

#pragma once

#include <string>

//
// RaSCSI standard (SCSI logic, standard pin assignment)
//

const std::string CONNECT_DESC = "FULLSPEC";	// Startup message

// Select signal control mode
const static int SIGNAL_CONTROL_MODE = 0;	// SCSI logical specification

// Control signal pin assignment (-1 means no control)
const static int PIN_ACT = 4;				// ACTIVE
const static int PIN_ENB = 5;				// ENABLE
const static int PIN_IND = 6;				// INITIATOR CTRL DIRECTION
const static int PIN_TAD = 7;				// TARGET CTRL DIRECTION
const static int PIN_DTD = 8;				// DATA DIRECTION

// Control signal output logic
#define ACT_ON ON							// ACTIVE SIGNAL ON
#define ENB_ON ON							// ENABLE SIGNAL ON
#define IND_IN OFF							// INITIATOR SIGNAL INPUT
#define TAD_IN OFF							// TARGET SIGNAL INPUT
#define DTD_IN ON							// DATA SIGNAL INPUT

// SCSI signal pin assignment
const static int PIN_DT0 = 10;				// Data 0
const static int PIN_DT1 = 11;				// Data 1
const static int PIN_DT2 = 12;				// Data 2
const static int PIN_DT3 = 13;				// Data 3
const static int PIN_DT4 = 14;				// Data 4
const static int PIN_DT5 = 15;				// Data 5
const static int PIN_DT6 = 16;				// Data 6
const static int PIN_DT7 = 17;				// Data 7
const static int PIN_DP	 = 18;				// Data parity
const static int PIN_ATN = 19;				// ATN
const static int PIN_RST = 20;				// RST
const static int PIN_ACK = 21;				// ACK
const static int PIN_REQ = 22;				// REQ
const static int PIN_MSG = 23;				// MSG
const static int PIN_CD	 = 24;				// CD
const static int PIN_IO	 = 25;				// IO
const static int PIN_BSY = 26;				// BSY
const static int PIN_SEL = 27;				// SEL