TM4C129ENCZAD Datasheet, PDF (1086/2037 Pages) Texas Instruments – Tiva Microcontroller

General-Purpose Timers
■ 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
16.1
Block Diagram
In the block diagram, the specific Capture Compare PWM (CCP) pins available depend on the
TM4C129ENCZAD device. See Table 16-1 on page 1086 for the available CCP pins and their timer
assignments.
Figure 16-1. GPTM Module Block Diagram
Timer A
Free-Running
Output Value
Configuration /
Interrupt
Timer A
Interrupt
Timer B
Interrupt
GPTMCFG
GPTMCTL
GPTMSYNC
GPTMIMR
GPTMRIS
GPTMMIS
GPTMICR
GPTMDMAEV
GPTMADCEV
GPTMPP
GPTMCC
Timer B
Free-Running
Output Value
Timer A
Control
GPTMTAPS
GPTMTAPMR
GPTMTAPR
GPTMTAMATCHR
GPTMTAILR
GPTMTAMR
GPTMTBMR
GPTMTBILR
GPTMTBMATCHR
GPTMTBPR
GPTMTBPMR
GPTMTBPS
Timer B
Control
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
GPTMTAV
Timer A
Timer B
GPTMTBV
GPTMTBR
TB Comparator
Clk/Edge
Detect
32 kHz or
Even CCP Pin
RTC Control
GPTMRTCPD
Clk/Edge
Detect
Odd CCP Pin
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)
Table 16-1. Available CCP Pins
Timer
16/32-Bit Timer 0
16/32-Bit Timer 1
16/32-Bit Timer 2
Up/Down Counter
Timer A
Timer B
Timer A
Timer B
Timer A
Timer B
Even CCP Pin
T0CCP0
-
T1CCP0
-
T2CCP0
-
Odd CCP Pin
-
T0CCP1
-
T1CCP1
-
T2CCP1
1086
Texas Instruments-Production Data
June 18, 2014