TM4C123BE6PZ_15 Datasheet, PDF (704/1310 Pages) Texas Instruments – Tiva TM4C123BE6PZ Microcontroller

General-Purpose Timers
■ Twelve 32/64-bit Capture Compare PWM pins (CCP)
■ Daisy chaining of timer modules to allow a single timer to initiate multiple timing events
■ Timer synchronization allows selected timers to start counting on the same clock cycle
■ ADC event trigger
■ User-enabled stalling when the microcontroller asserts CPU Halt flag during debug (excluding
RTC mode)
■ Ability to determine the elapsed time between the assertion of the timer interrupt and entry into
the interrupt service routine
■ Efficient transfers using Micro Direct Memory Access Controller (µDMA)
– Dedicated channel for each timer
– Burst request generated on timer interrupt
11.1
Block Diagram
In the block diagram, the specific Capture Compare PWM (CCP) pins available depend on the
TM4C123BE6PZ device. See Table 11-1 on page 705 for the available CCP pins and their timer
assignments.
Figure 11-1. GPTM Module Block Diagram
Timer A
Free-Running
Value
Interrupt / Config
Timer A
Interrupt
Timer B
Interrupt
GPTMCFG
GPTMCTL
GPTMIMR
GPTMRIS
GPTMMIS
GPTMICR
GPTMSYNC
GPTMPP
Timer B
Free-Running
Value
System
Clock
Timer A Control
GPTMTAPS
GPTMTAPMR
GPTMTAPR
GPTMTAMATCHR
GPTMTAILR
GPTMTAMR
Timer B Control
GPTMTBMR
GPTMTBILR
GPTMTBMATCHR
GPTMTBPR
GPTMTBPMR
GPTMTBPS
0xFFFF.FFFF (Up Counter Modes, 32-/64-bit)
0x0000.0000 (Down Counter Modes, 32-/64-bit)
0xFFFF (Up Counter Modes, 16-/32-bit)
0x0000 (Down Counter Modes, 16-/32-bit)
TA Comparator
GPTMTAR En
GPTMTAPV
GPTMTAV
GPTMTBV
GPTMTBPV
GPTMTBR En
TB Comparator
Clock / Edge
Detect
32 KHz or
Even CCP Pin
RTC Divider
RTC Predivider
GPTMRTCPD
Clock / Edge
Detect
Odd CCP Pin
0x0000 (Down Counter Modes, 16-/32-bit)
0xFFFF (Up Counter Modes, 16-/32-bit)
0x0000.0000 (Down Counter Modes, 32-/64-bit)
0xFFFF.FFFF (Up Counter Modes, 32-/64-bit)
704
June 12, 2014
Texas Instruments-Production Data