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- /*
- ports.h -- Port and bit definitions
-
- Poor Man's Packet (PMP)
- Copyright (c) 1991 by Andrew C. Payne All Rights Reserved.
-
- Permission to use, copy, modify, and distribute this software and its
- documentation without fee for NON-COMMERCIAL AMATEUR RADIO USE ONLY is hereby
- granted, provided that the above copyright notice appear in all copies.
- The author makes no representations about the suitability of this software
- for any purpose. It is provided "as is" without express or implied warranty.
-
- Assumes 'pmp.h' previously included.
-
- August, 1989
- Andrew C. Payne
- */
-
- /* ----- Output Bits ----- */
-
- /* Transmit data */
- EXTERN word TXPort;
- EXTERN byte TXBit;
-
- /* TX control (Push To Talk) */
- EXTERN word PTTPort;
- EXTERN byte PTTBit;
- EXTERN int PTTLevel;
-
- /* ----- Input Bits ----- */
-
- /* Receive data */
- EXTERN word RXPort;
- EXTERN byte RXBit;
-
- /* Carrier Detect */
- EXTERN word CDPort;
- EXTERN byte CDBit;
- EXTERN int CDLevel;