LM3S6422 Datasheet, PDF (298/609 Pages) Texas Instruments – Stellaris® LM3S6422 Microcontroller

General-Purpose Timers
– Input edge time capture
■ 16-bit PWM mode
– Simple PWM mode with software-programmable output inversion of the PWM signal
8.1 Block Diagram
Note: In Figure 8-1 on page 298, the specific CCP pins available depend on the Stellaris device.
See Table 8-1 on page 298 for the available CCPs.
Figure 8-1. GPTM Module Block Diagram
0x0000 (Down Counter Modes)
Interrupt / Config
TimerA
Interrupt
TimerB
Interrupt
GPTMCFG
GPTMCTL
GPTMIMR
GPTMRIS
GPTMMIS
GPTMICR
TimerA Control
GPTMTAPMR
GPTMTAPR
GPTMTAMATCHR
GPTMTAILR
GPTMTAMR
TimerB Control
GPTMTBPMR
GPTMTBPR
GPTMTBMATCHR
GPTMTBILR
GPTMTBMR
TA Comparator
GPTMAR En
GPTMTBR En
TB Comparator
Clock / Edge
Detect
32 KHz or
Even CCP Pin
RTC Divider
Clock / Edge
Detect
Odd CCP Pin
System
Clock
0x0000 (Down Counter Modes)
8.2
Table 8-1. Available CCP Pins
Timer
Timer 0
Timer 1
Timer 2
16-Bit Up/Down Counter
TimerA
TimerB
TimerA
TimerB
TimerA
TimerB
Even CCP Pin
CCP0
-
CCP2
-
-
-
Odd CCP Pin
-
CCP1
-
CCP3
-
-
Signal Description
Table 8-2 on page 299 and Table 8-3 on page 299 list the external signals of the GP Timer module
and describe the function of each. The GP Timer signals are alternate functions for some GPIO
signals and default to be GPIO signals at reset. The column in the table below titled "Pin Assignment"
298
June 18, 2012
Texas Instruments-Production Data