Mitsubishi DS5000TK, DS907x SIP manual Serial Control Register, LabelSCON Register Address 098H

										USER'S GUIDE
SERIAL CONTROL REGISTER
Label:SCON								Register Address: 098H
D7		D6	D5		D4	D3		D2	D1		D0
SM0		SM1	SM2		REN	TB8		RB8	TI		RI
Bit Description:
SCON.7, SCON.6:			SM0, SM1
ªMode Selectº:			Used to select the operational mode of the serial I/O port as follows:
SM0	SM1	MODE	WORD FUNCTION				BAUD LENGTH		CLOCK PERIOD
0	0	Mode 0	SYNC				8±bits		12 tCLK
0	1	Mode 1	ASYNC				10±bits		Timer 1 Overflow
1	0	Mode 2	ASYNC				11±bits		64 tCLK or 32 tCLK
1	1	Mode 3	ASYNC				11±bits		Timer 1 Overflow
Initialization:			Cleared to 0 on any type of reset.
SCON.5:			SM2
ªMultiple MCU Commº:			Used to enable the multiple microcontroller communications feature for
			modes 2 and 3. When SM2=1, RI will be activated only when serial words
			are received which cause RB8 to be set to a 1.
Initialization:			Cleared to a 0 on any type of reset.
SCON.4:			REN
ªReceive Enableº:			When set to 1, the receive shift register will be enabled. Disabled when
			cleared to 0.
Initialization:			Cleared to	a 0 on any type of reset.
SCON.3:			TB8
ªXmit Bit 8º:			Can be set or cleared to define the state of the 9th data bit in modes 2 and 3 of
			a serial data word.
Initialization:			Cleared to a 0 on any type of reset.
SCON.2:			RB8
ªRec. Bit 8º:			Indicates the state of the 9th data bit received while in modes, 2 or 3. If mode
			1 is selected with SM2=0, RB8 is the state of the stop bit which was received.
			RB8 is not used in mode 0.
Initialization:			Cleared to a 0 on any type of reset.
SCON.1:			TI
ªXmit Interruptº:			Status bit used to signal that a data word has been completely shifted out. In
			mode 0, it is set at the end of the 8th data bit. Set when the stop bit is trans-
			mitted in all other modes.
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