PIC16F1938-E/MV Microchip Technology, PIC16F1938-E/MV Datasheet - Page 226

• Manufacturer Part Number: PIC16F1938-E/MV
• Description: 28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V 28 UQFN 4x4x0.5mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1938-E/MV

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Size: 28KB (16K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-UFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F193X/LF193X
FIGURE 22-14:
22.4.4
The Enhanced PWM can be configured to automati-
cally restart the PWM signal once the auto-shutdown
condition has been removed. Auto-restart is enabled by
setting the PxRSEN bit in the PWMxCON register.
FIGURE 22-15:
DS41364D-page 226
Shutdown
Shutdown
PWM
PWM
CCPxASE bit
CCPxASE bit
AUTO-RESTART MODE
Activity
Activity
Event
Event
PWM AUTO-SHUTDOWN WITH FIRMWARE RESTART (PXRSEN = 0)
PWM AUTO-SHUTDOWN WITH AUTO-RESTART (PXRSEN = 1)
Overflow
Overflow
Timer
Timer
Start of
PWM Period
Start of
PWM Period
PWM Period
PWM Period
(Auto-Shutdown)
(Auto-Shutdown)
Event Occurs
Event Occurs
Missing Pulse
Missing Pulse
Overflow
Overflow
Shutdown
Shutdown
Timer
Timer
Preliminary
Event Clears
Shutdown
Event Clears
Overflow
Shutdown
Overflow
If auto-restart is enabled, the CCPxASE bit will remain
set as long as the auto-shutdown condition is active.
When the auto-shutdown condition is removed, the
CCPxASE bit will be cleared via hardware and normal
operation will resume.
Timer
Timer
Missing Pulse
(CCPxASE not clear)
Missing Pulse
(CCPxASE not clear)
Overflow
Overflow
Cleared by
CCPxASE
Cleared by
CCPxASE
Hardware
Firmware
Timer
Timer
PWM
Resumes
PWM
Resumes
 2009 Microchip Technology Inc.
Overflow
Overflow
Timer
Timer