LM3S812_16 Datasheet, PDF (273/590 Pages) Texas Instruments – Stellaris LM3S812 Microcontroller

Stellaris^® LM3S812 Microcontroller
– 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 273, the specific CCP pins available depend on the Stellaris device.
See Table 8-1 on page 273 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
-
CCP4
-
Odd CCP Pin
-
CCP1
-
CCP3
-
CCP5
Signal Description
Table 8-2 on page 274lists the external signals of the GP Timer module and describes 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" lists the possible GPIO
July 14, 2014
273
Texas Instruments-Production Data