PIC18LF8390T-I/PT Microchip Technology, PIC18LF8390T-I/PT Datasheet - Page 208
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18LF8390T-I/PT
Manufacturer Part Number
PIC18LF8390T-I/PT
Description
IC PIC MCU FLASH 4KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Specifications of PIC18LF8390T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
Number Of I /o
66
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-TFQFP
Processor Series
PIC18LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
SPI, I2C, EUSART, AUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
66
Number Of Timers
1 x 8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136, DM163028
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18LF8390T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- Current page: 208 of 414
- Download datasheet (7Mb)
implemented in software and stored as the 9th data bit.
PIC18F6390/6490/8390/8490
16.2
The Asynchronous mode of operation is selected by
clearing the SYNC bit (TXSTA1<4>). In this mode, the
EUSART uses standard Non-Return-to-Zero (NRZ) for-
mat (one Start bit, eight or nine data bits and one Stop
bit). The most common data format is 8 bits. An
on-chip, dedicated 8-bit/16-bit Baud Rate Generator
can be used to derive standard baud rate frequencies
from the oscillator.
The EUSART transmits and receives the LSb first. The
EUSART’s transmitter and receiver are functionally
independent, but use the same data format and baud
rate. The Baud Rate Generator produces a clock, either
x16 or x64 of the bit shift rate, depending on the BRGH
and BRG16 bits (TXSTA1<2> and BAUDCON1<3>).
Parity is not supported by the hardware but can be
When operating in Asynchronous mode, the EUSART
module consists of the following important elements:
• Baud Rate Generator
• Sampling Circuit
• Asynchronous Transmitter
• Asynchronous Receiver
• Auto-Wake-up on Sync Break Character
• 12-Bit Break Character Transmit
• Auto-Baud Rate Detection
16.2.1
The EUSART transmitter block diagram is shown in
Figure 16-3. The heart of the transmitter is the Transmit
(Serial) Shift Register (TSR). The Shift register obtains
its data from the Read/Write Transmit Buffer register,
TXREG1. The TXREG1 register is loaded with data in
software. The TSR register is not loaded until the Stop
bit has been transmitted from the previous load. As
soon as the Stop bit is transmitted, the TSR is loaded
with new data from the TXREG1 register (if available).
FIGURE 16-3:
DS39629C-page 206
EUSART Asynchronous Mode
BRG16
EUSART ASYNCHRONOUS
TRANSMITTER
TX1IE
Interrupt
EUSART TRANSMIT BLOCK DIAGRAM
SPBRGH1
Baud Rate Generator
TX1IF
TXEN
Baud Rate CLK
SPBRG1
MSb
(8)
TXREG1 Register
TSR Register
TX9D
• • •
TX9
8
Data Bus
Once the TXREG1 register transfers the data to the
TSR register (occurs in one T
is empty and the TX1IF flag bit (PIR1<4>) is set. This
interrupt can be enabled or disabled by setting or clear-
ing the interrupt enable bit, TX1IE (PIE1<4>). TX1IF
will be set regardless of the state of TX1IE; it cannot be
cleared in software. TX1IF is also not cleared immedi-
ately upon loading TXREG1, but becomes valid in the
second instruction cycle following the load instruction.
Polling TX1IF immediately following a load of TXREG1
will return invalid results.
While TX1IF indicates the status of the TXREG1 regis-
ter, another bit, TRMT (TXSTA1<1>), shows the status
of the TSR register. TRMT is a read-only bit which is set
when the TSR register is empty. No interrupt logic is
tied to this bit so the user has to poll this bit in order to
determine if the TSR register is empty.
To set up an Asynchronous Transmission:
1.
2.
3.
4.
5.
6.
7.
8.
Note 1: The TSR register is not mapped in data
Initialize the SPBRGH1:SPBRG1 registers for
the appropriate baud rate. Set or clear the
BRGH and BRG16 bits, as required, to achieve
the desired baud rate.
Enable the asynchronous serial port by clearing
bit, SYNC, and setting bit, SPEN.
If interrupts are desired, set enable bit, TX1IE.
If 9-bit transmission is desired, set transmit bit,
TX9; can be used as address/data bit.
Enable the transmission by setting bit, TXEN,
which will also set bit, TX1IF.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit, TX9D.
Load data to the TXREG1 register (starts
transmission).
If using interrupts, ensure that the GIE and PEIE
bits in the INTCON register (INTCON<7:6>) are
set.
LSb
2: Flag bit, TX1IF, is set when enable bit
0
memory so it is not available to the user.
TXEN is set.
TRMT
and Control
Pin Buffer
© 2007 Microchip Technology Inc.
SPEN
CY
), the TXREG1 register
TX1 pin
Related parts for PIC18LF8390T-I/PT
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![TC1014-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1014-5.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.7VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-2.8VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1055-4.0VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.5VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet:
![TC1186-2.85VCT](/images/manufacturer_photos/0/4/440/microchip_technology_inc__tmb.jpg)
Part Number:
Description:
Manufacturer:
Microchip Technology Inc.
Datasheet: