Texas Instruments MSP430x1xx manual TACCTLx, Capture/Compare Control Register, CMx, CCISx, OUTMODx

Timer_A Registers

TACCTLx, Capture/Compare Control Register

15 14 13 12

11 10 9 8

CMx

CCISx

SCS

SCCI

Unused

CAP

rw−(0)	rw−(0)	rw−(0)	rw−(0)
7	6	5	4

rw−(0)	r−(0)	r−(0)	rw−(0)
3	2	1	0

OUTMODx

CCIE

CCI

OUT

COV

CCIFG

rw−(0)	rw−(0)	rw−(0)	rw−(0)	r	rw−(0)	rw−(0)	rw−(0)
CMx	Bit	Capture mode
	15-14	00 No capture

01Capture on rising edge

10Capture on falling edge

11Capture on both rising and falling edges

CCISx	Bit	Capture/compare input select. These bits select the TACCRx input signal.
	13-12	See the device-specific datasheet for specific signal connections.
		00	CCIxA
		01	CCIxB
		10	GND
		11	VCC
SCS	Bit 11	Synchronize capture source. This bit is used to synchronize the capture input
		signal with the timer clock.
		0	Asynchronous capture
		1	Synchronous capture
SCCI	Bit 10	Synchronized capture/compare input. The selected CCI input signal is
		latched with the EQUx signal and can be read via this bit
Unused	Bit 9	Unused. Read only. Always read as 0.
CAP	Bit 8	Capture mode
		0	Compare mode
		1	Capture mode
OUTMODx	Bits	Output mode. Modes 2, 3, 6, and 7 are not useful for TACCR0 because EQUx
	7-5	= EQU0.
		000	OUT bit value
		001	Set
		010	Toggle/reset
		011	Set/reset
		100	Toggle
		101	Reset
		110	Toggle/set
		111	Reset/set

11-22Timer_A