mirror of https://github.com/akuker/RASCSI.git
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Powered by XM6 TypeG Technology.
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// Copyright (C) 2016-2020 GIMONS
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include <string>
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//
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// PiSCSI standard (SCSI logic, standard pin assignment)
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//
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const std::string CONNECT_DESC = "STANDARD"; // Startup message
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// Select signal control mode
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const static int SIGNAL_CONTROL_MODE = 0; // SCSI logical specification
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// Control signal pin assignment (-1 means no control)
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const static int PIN_ACT = 4; // ACTIVE
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const static int PIN_ENB = 5; // ENABLE
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const static int PIN_IND = -1; // INITIATOR CTRL DIRECTION
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const static int PIN_TAD = -1; // TARGET CTRL DIRECTION
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const static int PIN_DTD = -1; // DATA DIRECTION
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// Control signal output logic
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#define ACT_ON ON // ACTIVE SIGNAL ON
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#define ENB_ON ON // ENABLE SIGNAL ON
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#define IND_IN OFF // INITIATOR SIGNAL INPUT
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#define TAD_IN OFF // TARGET SIGNAL INPUT
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#define DTD_IN ON // DATA SIGNAL INPUT
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// SCSI signal pin assignment
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const static int PIN_DT0 = 10; // Data 0
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const static int PIN_DT1 = 11; // Data 1
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const static int PIN_DT2 = 12; // Data 2
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const static int PIN_DT3 = 13; // Data 3
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const static int PIN_DT4 = 14; // Data 4
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const static int PIN_DT5 = 15; // Data 5
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const static int PIN_DT6 = 16; // Data 6
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const static int PIN_DT7 = 17; // Data 7
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const static int PIN_DP = 18; // Data parity
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const static int PIN_ATN = 19; // ATN
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const static int PIN_RST = 20; // RST
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const static int PIN_ACK = 21; // ACK
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const static int PIN_REQ = 22; // REQ
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const static int PIN_MSG = 23; // MSG
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const static int PIN_CD = 24; // CD
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const static int PIN_IO = 25; // IO
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const static int PIN_BSY = 26; // BSY
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const static int PIN_SEL = 27; // SEL
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