PIC16LF819T-I/SO Microchip Technology, PIC16LF819T-I/SO Datasheet - Page 170
![IC MCU FLASH 2KX14 EEPROM 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16LF819T-I/SO
Manufacturer Part Number
PIC16LF819T-I/SO
Description
IC MCU FLASH 2KX14 EEPROM 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16LF627A-IP.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16F818-ISO.pdf
(8 pages)
4.PIC16F818-ISO.pdf
(8 pages)
5.PIC18F2450-ISO.pdf
(324 pages)
Specifications of PIC16LF819T-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF819T-I/SO
Manufacturer:
MITSUBISHI
Quantity:
330
Part Number:
PIC16LF819T-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
- PIC16LF627A-IP PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F818-ISO PDF datasheet #4
- PIC18F2450-ISO PDF datasheet #5
- Current page: 170 of 324
- Download datasheet (6Mb)
PIC18F2450/4450
15.2.5
The EUSART module has the capability of sending the
special Break character sequences that are required by
the LIN bus standard. The Break character transmit
consists of a Start bit, followed by twelve ‘0’ bits and a
Stop bit. The Frame Break character is sent whenever
the
TXSTA<5>) are set while the Transmit Shift Register is
loaded with data. Note that the value of data written to
TXREG will be ignored and all ‘0’s will be transmitted.
The SENDB bit is automatically reset by hardware after
the corresponding Stop bit is sent. This allows the user
to preload the transmit FIFO with the next transmit byte
following the Break character (typically, the Sync
character in the LIN specification).
Note that the data value written to the TXREG for the
Break character is ignored. The write simply serves the
purpose of initiating the proper sequence.
The TRMT bit indicates when the transmit operation is
active or Idle, just as it does during normal transmission.
See Figure 15-10 for the timing of the Break character
sequence.
15.2.5.1
The following sequence will send a message frame
header made up of a Break, followed by an Auto-Baud
Sync byte. This sequence is typical of a LIN bus master.
1.
2.
FIGURE 15-10:
DS39760D-page 168
Reg. Empty Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Configure the EUSART for the desired mode.
Set the TXEN and SENDB bits to set up the
Break character.
Write to TXREG
(Transmit Buffer
SENDB
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
TRMT bit
TX (pin)
TXIF bit
SENDB
BREAK CHARACTER SEQUENCE
Break and Sync Transmit Sequence
and
TXEN
SEND BREAK CHARACTER SEQUENCE
Dummy Write
bits
(TXSTA<3>
SENDB sampled here
Start bit
and
bit 0
bit 1
Break
3.
4.
5.
When the TXREG becomes empty, as indicated by the
TXIF, the next data byte can be written to TXREG.
15.2.6
The Enhanced USART module can receive a Break
character in two ways.
The first method forces configuration of the baud rate
at a frequency of 9/13 the typical speed. This allows for
the Stop bit transition to be at the correct sampling
location (13 bits for Break versus Start bit and eight
data bits for typical data).
The second method uses the auto-wake-up feature
described in Section 15.2.4 “Auto-Wake-up on Sync
Break Character”. By enabling this feature, the
EUSART will sample the next two transitions on RX/DT,
cause an RCIF interrupt and receive the next data byte
followed by another interrupt.
Note that following a Break character, the user will
typically want to enable the Auto-Baud Rate Detect
feature. For both methods, the user can set the ABD bit
once the TXIF interrupt is observed.
Load the TXREG with a dummy character to
initiate transmission (the value is ignored).
Write ‘55h’ to TXREG to load the Sync character
into the transmit FIFO buffer.
After the Break has been sent, the SENDB bit is
reset by hardware. The Sync character now
transmits in the preconfigured mode.
RECEIVING A BREAK CHARACTER
bit 11
Auto-Cleared
© 2008 Microchip Technology Inc.
Stop bit
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