Unitech MR350MKII manual Disable RS-232 port, Set Communication parameters, Bit #

02	Output data
	Entry Parameters:	AH = 2
		AL = Data character
	Returned Values:	None

void TC_232_char_O(unsigned char ch)

{

regs.h.ah = 2; regs.h.al = ch; int86(0x34,®s,®s);

}

03	Enable RS-232 port
	Entry Parameters:	AH = 3
	Returned Values:	None

void TC_232_enable()

{

regs.h.ah = 3; int86(0x34,®s,®s);

}

04 Disable RS-232 port

Entry Parameters:	AH = 4
Returned Values:	None

void TC_232_disable()

{

regs.h.ah = 4; int86(0x34,®s,®s);

	}
00	Set Communication parameters
	Entry Parameters:	AH = 0	BIT #
			76543210
		AL = bit 0	xxxxxxx0	7 data bits
			xxxxxxx1	8 data bits
		bit 1	xxxxxx0x	1 stop bit
			xxxxxx1x	2 stop bits
		bit 2-3	xxxx00xx NONE parity
			xxxx01xx ODD parity
			xxxx11xx EVEN parity
		bit 4-7	0000xxxx	110 baud rate

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