PIC16LF1939-E/P Microchip Technology, PIC16LF1939-E/P Datasheet - Page 159

• Manufacturer Part Number: PIC16LF1939-E/P
• Description: 28KB Flash, 1KB RAM, 256B EEPROM, LCD, NanoWatt XLP 40 PDIP .600in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF1939-E/P

• 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: 36
• 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 ~ 3.6 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

15.2
15.2.1
To enable the ADC module, the ADON bit of the
ADCON0 register must be set to a ‘1’. Setting the GO/
DONE bit of the ADCON0 register to a ‘1’ will start the
Analog-to-Digital conversion.
15.2.2
When the conversion is complete, the ADC module will:
• Clear the GO/DONE bit
• Set the ADIF Interrupt Flag bit
• Update the ADRESH and ADRESL registers with
15.2.3
If a conversion must be terminated before completion,
the GO/DONE bit can be cleared in software. The
ADRESH and ADRESL registers will be updated with
the partially complete Analog-to-Digital conversion
sample. Incomplete bits will match the last bit
converted.
 2009 Microchip Technology Inc.
Note:
new conversion result
Note:
ADC Operation
COMPLETION OF A CONVERSION
STARTING A CONVERSION
The GO/DONE bit should not be set in the
same instruction that turns on the ADC.
Refer to Section 15.2.6 “A/D Conver-
sion Procedure”.
TERMINATING A CONVERSION
A device Reset forces all registers to their
Reset state. Thus, the ADC module is
turned off and any pending conversion is
terminated.
Preliminary
15.2.4
The ADC module can operate during Sleep. This
requires the ADC clock source to be set to the F
option. When the F
ADC waits one additional instruction before starting the
conversion. This allows the SLEEP instruction to be
executed, which can reduce system noise during the
conversion. If the ADC interrupt is enabled, the device
will wake-up from Sleep when the conversion
completes. If the ADC interrupt is disabled, the ADC
module is turned off after the conversion completes,
although the ADON bit remains set.
When the ADC clock source is something other than
F
sion to be aborted and the ADC module is turned off,
although the ADON bit remains set.
15.2.5
The Special Event Trigger of the CCPx/ECCPX module
allows periodic ADC measurements without software
intervention. When this trigger occurs, the GO/DONE
bit is set by hardware and the Timer1 counter resets to
zero.
TABLE 15-2:
Using the Special Event Trigger does not assure proper
ADC timing. It is the user’s responsibility to ensure that
the ADC timing requirements are met.
Refer to Section 22.0 “Capture/Compare/PWM
Modules” for more information.
PIC16F193X/LF193X
RC
PIC16F193X/LF193X
, a SLEEP instruction causes the present conver-
Device
ADC OPERATION DURING SLEEP
SPECIAL EVENT TRIGGER
SPECIAL EVENT TRIGGER
RC
clock source is selected, the
CCPx/ECCPx
DS41364D-page 159
CCP5
RC