PIC16F1938-I/SO Microchip Technology, PIC16F1938-I/SO Datasheet - Page 212
![IC MCU 8BIT FLASH 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC16F1938-I/SO
Manufacturer Part Number
PIC16F1938-I/SO
Description
IC MCU 8BIT FLASH 28SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16LF1933-ISS.pdf
(508 pages)
3.PIC16LF1933-ISS.pdf
(46 pages)
4.PIC16F1938-ISS.pdf
(10 pages)
Specifications of PIC16F1938-I/SO
Core Size
8-Bit
Program Memory Size
28KB (16K x 14)
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
25
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 ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
PIC16F
Eeprom Memory Size
256Byte
Ram Memory Size
1024Byte
Cpu Speed
32MHz
No. Of Timers
5
Interface
EUSART, I2C, SPI
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F1938-I/SO
Manufacturer:
MITSUMI
Quantity:
12 000
Part Number:
PIC16F1938-I/SO
Manufacturer:
MICROCHI
Quantity:
20 000
- PIC16F722-ISS PDF datasheet
- PIC16LF1933-ISS PDF datasheet #2
- PIC16LF1933-ISS PDF datasheet #3
- PIC16F1938-ISS PDF datasheet #4
- Current page: 212 of 508
- Download datasheet (5Mb)
PIC16F193X/LF193X
22.2
The Compare mode function described in this section
is available and identical for CCP modules ECCP1,
ECCP2, ECCP3, CCP4 and CCP5.
Compare mode makes use of the 16-bit Timer1
resource. The 16-bit value of the CCPRxH:CCPRxL
register pair is constantly compared against the 16-bit
value of the TMR1H:TMR1L register pair. When a
match occurs, one of the following events can occur:
• Toggle the CCPx output
• Set the CCPx output
• Clear the CCPx output
• Generate a Special Event Trigger
• Generate a Software Interrupt
The action on the pin is based on the value of the
CCPxM<3:0> control bits of the CCPxCON register. At
the same time, the interrupt flag CCPxIF bit is set.
All Compare modes can generate an interrupt.
Figure 22-2 shows a simplified diagram of the
Compare operation.
FIGURE 22-2:
22.2.1
The user must configure the CCPx pin as an output by
clearing the associated TRIS bit.
Also, the CCPx pin function can be moved to
alternative pins using the APFCON register. Refer to
Section 12.1 “Alternate Pin Function” for more
details.
DS41364D-page 212
Special Event Trigger will:
• CCP1-CCP4: Reset Timer1, but not set interrupt flag bit
• CCP5: Reset Timer1, but not set interrupt flag bit and set bit
Note:
CCPx
Pin
TMR1IF.
GO/DONE (ADCON0<1>).
Output Enable
TRIS
Compare Mode
CCP PIN CONFIGURATION
Clearing the CCPxCON register will force
the CCPx compare output latch to the
default low level. This is not the PORT I/O
data latch.
Q
Special Event Trigger
CCPxM<3:0>
R
S
Mode Select
Output
COMPARE MODE
OPERATION BLOCK
DIAGRAM
Logic
Set CCPxIF Interrupt Flag
4
(PIRx)
Match
CCPRxH CCPRxL
TMR1H
Comparator
TMR1L
Preliminary
22.2.2
In Compare mode, Timer1 must be running in either
Timer mode or Synchronized Counter mode. The
compare operation may not work in Asynchronous
Counter mode.
See Section 20.0 “Timer1 Module with Gate Control”
for more information on configuring Timer1.
22.2.3
When Generate Software Interrupt mode is chosen
(CCPxM<3:0> = 1010), the CCPx module does not
assert control of the CCPx pin (see the CCPxCON
register).
22.2.4
When Special Event Trigger mode is chosen
(CCPxM<3:0> = 1011), the CCPx module does the
following:
• Resets Timer1
• Starts an ADC conversion if ADC is enabled
The CCPx module does not assert control of the CCPx
pin in this mode.
The Special Event Trigger output of the CCP occurs
immediately upon a match between the TMR1H,
TMR1L register pair and the CCPRxH, CCPRxL
register pair. The TMR1H, TMR1L register pair is not
reset until the next rising edge of the Timer1 clock. The
Special Event Trigger output starts an A/D conversion
(if the A/D module is enabled). This feature is only
available on CCP5. This allows the CCPRxH, CCPRxL
register
programmable period register for Timer1.
Note:
(CCP5 only)
Note 1: The Special Event Trigger from the CCP
2: Removing
pair
TIMER1 MODE RESOURCE
Clocking Timer1 from the system clock
(F
mode. In order for Capture mode to
recognize the trigger event on the CCPx
pin, TImer1 must be clocked from the
instruction clock (F
external clock source.
SOFTWARE INTERRUPT MODE
SPECIAL EVENT TRIGGER
module does not set interrupt flag bit
TMR1IF of the PIR1 register.
changing the contents of the CCPRxH
and CCPRxL register pair, between the
clock edge that generates the Special
Event Trigger and the clock edge that
generates the Timer1 Reset, will preclude
the Reset from occurring.
OSC
to
) should not be used in Capture
effectively
2009 Microchip Technology Inc.
the
match
OSC
provide
/4) or from an
condition
a
16-bit
by
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