TM4C129ENCZAD Datasheet, PDF (1805/2037 Pages) Texas Instruments – Tiva Microcontroller

Tiva^™ TM4C129ENCZAD Microcontroller
26.2
Signal Description
The following table lists the external signals of the PWM module and describes 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 Mux/Pin Assignment" lists the possible
GPIO pin placements for these PWM signals. The AFSEL bit in the GPIO Alternate Function Select
(GPIOAFSEL) register (page 784) should be set to choose the PWM function. The number in
parentheses is the encoding that must be programmed into the PMCn field in the GPIO Port Control
(GPIOPCTL) register (page 801) to assign the PWM signal to the specified GPIO port pin. For more
information on configuring GPIOs, see “General-Purpose Input/Outputs (GPIOs)” on page 753.
Table 26-1. PWM Signals (212BGA)
Pin Name
M0FAULT0
M0FAULT1
M0FAULT2
M0FAULT3
M0PWM0
M0PWM1
M0PWM2
M0PWM3
M0PWM4
M0PWM5
M0PWM6
M0PWM7
Pin Number Pin Mux / Pin
Assignment
V7
PF4 (6)
D12
PS0 (6)
V16
PK6 (6)
D13
PS1 (6)
W16
B14
PK7 (6)
PS2 (6)
G16
PL0 (6)
A14
PS3 (6)
U6
PF0 (6)
N5
PR0 (6)
V6
PF1 (6)
N4
PR1 (6)
W6
PF2 (6)
N2
PR2 (6)
T7
PF3 (6)
V8
PR3 (6)
N15
PG0 (6)
P3
PR4 (6)
T14
PG1 (6)
P2
PR5 (6)
U19
PK4 (6)
W9
PR6 (6)
V17
PK5 (6)
R10
PR7 (6)
Pin Type
I
I
I
I
O
O
O
O
O
O
O
O
Buffer Type Description
TTL
Motion Control Module 0 PWM Fault 0.
TTL
Motion Control Module 0 PWM Fault 1.
TTL
Motion Control Module 0 PWM Fault 2.
TTL
Motion Control Module 0 PWM Fault 3.
TTL
Motion Control Module 0 PWM 0. This signal is
controlled by Module 0 PWM Generator 0.
TTL
Motion Control Module 0 PWM 1. This signal is
controlled by Module 0 PWM Generator 0.
TTL
Motion Control Module 0 PWM 2. This signal is
controlled by Module 0 PWM Generator 1.
TTL
Motion Control Module 0 PWM 3. This signal is
controlled by Module 0 PWM Generator 1.
TTL
Motion Control Module 0 PWM 4. This signal is
controlled by Module 0 PWM Generator 2.
TTL
Motion Control Module 0 PWM 5. This signal is
controlled by Module 0 PWM Generator 2.
TTL
Motion Control Module 0 PWM 6. This signal is
controlled by Module 0 PWM Generator 3.
TTL
Motion Control Module 0 PWM 7. This signal is
controlled by Module 0 PWM Generator 3.
26.3 Functional Description
26.3.1
Clock Configuration
The PWM has two clock source options:
■ The System Clock
■ A predivided System Clock
The clock source is selected by programming the USEPWM bit in the PWM Clock Configuration
(PWMCC) register. The PWMDIV bitfield specifies the divisor of the System Clock that is used to
create the PWM Clock.
June 18, 2014
Texas Instruments-Production Data
1805