1 /* serial port communication */
2 #define IO_COMM_DATA 0xB1
3 #define IO_COMM_DIR 0xB3
4 #define COMM_RECEIVE_INT_GEN 0x80
5 #define COMM_SPEED_9600 0x00
6 #define COMM_SPEED_38400 0x40
7 #define COMM_SEND_INT_GEN 0x20
8 #define COMM_SEND_COMPLETE 0x04
9 #define COMM_ERROR 0x02
10 #define COMM_RECEIVE_COMPLETE 0x01