Datasheet

0h
TBR
(max)
TBIFG
Output Mode 1: Set
Output Mode 2:Toggle/Reset
Output Mode 3: Set/Reset
Output Mode 4:Toggle
Output Mode 5: Reset
Output Mode 6:Toggle/Set
Output Mode 7: Reset/Set
TBCL0
TBCL3
EQU3
TBIFG
Interrupt Events
EQU3
EQU0
EQU3 EQU3
EQU0
www.ti.com Timer_B Operation
13.2.5.1.3 Output Example, Timer in Up/Down Mode
The OUTx signal changes when the timer equals TBCLx in either count direction and when the timer
equals TBCL0, depending on the output mode. An example is shown in Figure 13-14 using TBCL0 and
TBCL3.
Figure 13-14. Output Example, Timer in Up/Down Mode
NOTE: Switching Between Output Modes
When switching between output modes, one of the OUTMODx bits should remain set during
the transition, unless switching to mode 0. Otherwise, output glitching can occur because a
NOR gate decodes output mode 0. A safe method for switching between output modes is to
use output mode 7 as a transition state:
BIS #OUTMOD_7,&TBCCTLx ; Set output mode=7
BIC #OUTMODx, &TBCCTLx ; Clear unwanted bits
387
SLAU144J–December 2004–Revised July 2013 Timer_B
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