PIC18F8410-E/PT Microchip Technology, PIC18F8410-E/PT Datasheet - Page 246
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PIC18F8410-E/PT
Manufacturer Part Number
PIC18F8410-E/PT
Description
IC PIC MCU FLASH 16KX16 80TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F6310-IPT.pdf
(412 pages)
2.PIC18F6310-IPT.pdf
(16 pages)
3.PIC18F6310-IPT.pdf
(4 pages)
4.PIC18F6310-IPT.pdf
(28 pages)
5.PIC18F6310-IPT.pdf
(6 pages)
6.PIC18F6310-IPT.pdf
(4 pages)
Specifications of PIC18F8410-E/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, HLVD, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
80-TFQFP
For Use With
XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F8410-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F6310/6410/8310/8410
19.2
The Asynchronous mode of operation is selected by
clearing the SYNC bit (TXSTA2<4>). In this mode, the
AUSART 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 Baud Rate Generator can be used to
derive standard baud rate frequencies from the
oscillator.
The AUSART transmits and receives the LSb first. The
AUSART’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 bit (TXSTA2<2>). Parity is not supported by the
hardware but can be implemented in software and
stored as the 9th data bit.
When operating in Asynchronous mode, the AUSART
module consists of the following important elements:
• Baud Rate Generator
• Sampling Circuit
• Asynchronous Transmitter
• Asynchronous Receiver
19.2.1
The AUSART transmitter block diagram is shown in
Figure
(Serial) Shift register (TSR). The Shift register obtains
its data from the Read/Write Transmit Buffer register,
TXREG2. The TXREG2 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 TXREG2 register (if available).
Once the TXREG2 register transfers the data to the
TSR register (occurs in one T
is empty and the TX2IF flag bit (PIR3<4>) is set. This
FIGURE 19-1:
DS39635C-page 246
19-1. The heart of the transmitter is the Transmit
AUSART Asynchronous Mode
AUSART ASYNCHRONOUS
TRANSMITTER
TX2IE
Interrupt
AUSART TRANSMIT BLOCK DIAGRAM
Baud Rate Generator
TX2IF
TXEN
SPBRG2
CY
), the TXREG2 register
Baud Rate CLK
MSb
(8)
TXREG2 Register
TSR Register
TX9D
TX9
8
Data Bus
interrupt can be enabled or disabled by setting or
clearing the interrupt enable bit, TX2IE (PIE3<4>).
TX2IF will be set regardless of the state of TX2IE; it
cannot be cleared in software. TX2IF is also not
cleared immediately upon loading TXREG2, but
becomes valid in the second instruction cycle following
the load instruction. Polling TX2IF immediately
following a load of TXREG2 will return invalid results.
While TX2IF indicates the status of the TXREG2 regis-
ter, another bit, TRMT (TXSTA2<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 SPBRG2 register for the appropriate
baud rate. Set or clear the BRGH bit, 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, TX2IE.
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, TX2IF.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit, TX9D.
Load data to the TXREG2 register (starts
transmission).
If using interrupts, ensure that the GIE and PEIE
bits in the INTCON register (INTCON<7:6>) are
set.
LSb
0
2: Flag bit, TX2IF, is set when enable bit,
TRMT
memory so it is not available to the user.
TXEN is set.
and Control
Pin Buffer
2010 Microchip Technology Inc.
SPEN
TX2 Pin
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