LM3S6110 Datasheet, PDF (501/610 Pages) Texas Instruments – Stellaris® LM3S6110 Microcontroller

Stellaris^® LM3S6110 Microcontroller
Figure 14-2. PWM Module Block Diagram
PWM Generator Block
Interrupts /
Triggers
Control
PWMnCTL
Timer
zero
load
dir
PWMnLOAD
PWMnCOUNT
PWM Clock
Comparators
PWMnCMPA
PWMnCMPB
cmp A
cmp B
Interrupt and
Trigger
Generator
PWMnINTEN
PWMnRIS
PWMnISC
Signal
Generator
PWMnGENA
PWMnGENB
Fault
Condition
PWMnFLTSRC0
PWMnMINFLTPER
PWMnFLTSEN
PWMnFLTSTAT0
Fault(s)
PWMn_Fault
Dead-Band
Generator
PWMnDBCTL
PWMnDBRISE
PWMnDBFALL
PWMn_A
PWMn_B
14.2
Signal Description
Table 14-1 on page 501 and Table 14-2 on page 501 list the external signals of the PWM module and
describe the function of each. The PWM controller 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 pin placements for these PWM signals. The AFSEL bit in the GPIO Alternate
Function Select (GPIOAFSEL) register (page 273) should be set to choose the PWM function. For
more information on configuring GPIOs, see “General-Purpose Input/Outputs (GPIOs)” on page 252.
Table 14-1. PWM Signals (100LQFP)
Pin Name
Pin Number Pin Type Buffer Type^a Description
Fault
71
I
TTL
PWM Fault.
PWM0
10
O
TTL
PWM 0. This signal is controlled by PWM Generator 0.
PWM1
11
O
TTL
PWM 1. This signal is controlled by PWM Generator 0.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
Table 14-2. PWM Signals (108BGA)
Pin Name
Pin Number Pin Type Buffer Type^a Description
Fault
C12
I
TTL
PWM Fault.
PWM0
G1
O
TTL
PWM 0. This signal is controlled by PWM Generator 0.
PWM1
G2
O
TTL
PWM 1. This signal is controlled by PWM Generator 0.
a. The TTL designation indicates the pin has TTL-compatible voltage levels.
June 18, 2012
501
Texas Instruments-Production Data