TM4C1232C3PM Datasheet, PDF (651/1171 Pages) Texas Instruments – Tiva Microcontroller

Figure 10-9. Timer Daisy Chain
Tiva^™ TM4C1232C3PM Microcontroller
GP Timer N+1
10
GPTMTnMR.TnWOT
Timer B
Timer A
Timer B ADC Trigger
Timer A ADC Trigger
GP Timer N
10
GPTMTnMR.TnWOT
Timer B
Timer A
Timer B ADC Trigger
Timer A ADC Trigger
10.3.4
Synchronizing GP Timer Blocks
The GPTM Synchronizer Control (GPTMSYNC) register in the GPTM0 block can be used to
synchronize selected timers to begin counting at the same time. Setting a bit in the GPTMSYNC
register causes the associated timer to perform the actions of a timeout event. An interrupt is not
generated when the timers are synchronized. If a timer is being used in concatenated mode, only
the bit for Timer A must be set in the GPTMSYNC register.
Note: All timers must use the same clock source for this feature to work correctly.
Table 10-11 on page 651 shows the actions for the timeout event performed when the timers are
synchronized in the various timer modes.
Table 10-11. Timeout Actions for GPTM Modes
Mode
Count Dir
32- and 64-bit One-Shot ─
(concatenated timers)
32- and 64-bit Periodic Down
(concatenated timers) _Up
32- and 64-bit RTC
Up
(concatenated timers)
16- and 32- bit One Shot ─
(individual/split timers)
16- and 32- bit Periodic Down
(individual/split timers) _Up
16- and 32- bit
Down
Edge-Count
Up
(individual/split timers)
16- and 32- bit
Down
Edge-Time
Up
(individual/split timers)
16- and 32-bit PWM Down
Time Out Action
N/A
Count value = ILR
Count value = 0
Count value = 0
N/A
Count value = ILR
Count value = 0
Count value = ILR
Count value = 0
Count value = ILR
Count value = 0
Count value = ILR
June 12, 2014
651
Texas Instruments-Production Data