PIC16LF871-I/PT Microchip Technology, PIC16LF871-I/PT Datasheet - Page 69
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PIC16LF871-I/PT
Manufacturer Part Number
PIC16LF871-I/PT
Description
IC PIC MCU FLASH 2KX14 44TQFP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF871-I/PT
Core Size
8-Bit
Program Memory Size
3.5KB (2K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Controller Family/series
PIC16LF
No. Of I/o's
33
Eeprom Memory Size
64Byte
Ram Memory Size
128Byte
Cpu Speed
20MHz
No. Of Timers
3
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
PSP, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
33
Number Of Timers
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
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
28 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16LF871-I/PT
Manufacturer:
TI
Quantity:
212
Company:
Part Number:
PIC16LF871-I/PT
Manufacturer:
MICROCHIP
Quantity:
3 000
Company:
Part Number:
PIC16LF871-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC16LF871-I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
When setting up an Asynchronous Transmission,
follow these steps:
1.
2.
3.
4.
FIGURE 9-2:
FIGURE 9-3:
TABLE 9-5:
2003 Microchip Technology Inc.
0Bh, 8Bh,
10Bh,18Bh
0Ch
18h
19h
8Ch
98h
99h
Legend:
Note 1:
Address
Write to TXREG
BRG Output
(Shift Clock)
RC6/TX/CK (pin)
TXIF bit
(Interrupt Reg. Flag)
TRMT bit
(Transmit Shift
Reg. Empty Flag)
Note:
Write to TXREG
BRG Output
(Shift Clock)
RC6/TX/CK (pin)
TXIF bit
(Transmit Buffer
Reg. Empty Flag)
TRMT bit
(Transmit Shift
Reg. Empty Flag)
Initialize the SPBRG register for the appropriate
baud rate. If a high speed baud rate is desired,
set bit BRGH (Section 9.1).
Enable the asynchronous serial port by clearing
bit SYNC and setting bit SPEN.
If interrupts are desired, then set enable bit
TXIE.
If 9-bit transmission is desired, then set transmit
bit TX9.
x = unknown, - = unimplemented locations read as '0'. Shaded cells are not used for asynchronous transmission.
Bits PSPIE and PSPIF are reserved on the PIC16F870; always maintain these bits clear.
This timing diagram shows two consecutive transmissions.
INTCON
PIR1
RCSTA
TXREG USART Transmit Register
PIE1
TXSTA
SPBRG Baud Rate Generator Register
Name
REGISTERS ASSOCIATED WITH ASYNCHRONOUS TRANSMISSION
PSPIF
PSPIE
ASYNCHRONOUS MASTER TRANSMISSION
ASYNCHRONOUS MASTER TRANSMISSION (BACK TO BACK)
CSRC
SPEN
Bit 7
GIE
Word 1
Transmit Shift Reg.
Word 1
Transmit Shift Reg
Word 1
Word 1
(1)
(1)
ADIE
PEIE
ADIF
Bit 6
RX9
TX9
START Bit
START Bit
Word 2
SREN
TXEN
RCIF
RCIE
Bit 5
T0IE
Bit 0
CREN
SYNC
INTE
TXIE
Bit 4
TXIF
Bit 0
RBIE
Bit 3
—
—
—
—
Bit 1
Word 1
Bit 1
5.
6.
7.
8.
Word 1
CCP1IF
CCP1IE TMR2IE
BRGH
FERR
Bit 2
T0IF
Enable the transmission by setting bit TXEN,
which will also set bit TXIF.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit TX9D.
Load data to the TXREG register (starts
transmission).
If using interrupts, ensure that GIE and PEIE
(bits 7 and 6) of the INTCON register are set.
TMR2IF
OERR
TRMT
Bit 1
INTF
PIC16F870/871
Bit 7/8
Word 2
Transmit Shift Reg.
Bit 7/8
TMR1IE
TMR1IF
RX9D
TX9D
R0IF
Bit 0
STOP Bit START Bit
STOP Bit
0000 000x
0000 -000
0000 -00x
0000 0000
0000 -000
0000 -010
0000 0000
POR, BOR
Value on:
DS30569B-page 67
Word 2
0000 000u
0000 -000
0000 -00x
0000 0000
0000 -000
0000 -010
0000 0000
Value on
RESETS
all other
Bit 0