PIC16F877-20/P Microchip Technology, PIC16F877-20/P Datasheet - Page 108

• Manufacturer Part Number: PIC16F877-20/P
• Description: IC MCU FLASH 8KX14 EE 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F877-20/P

• Core Size: 8-Bit
• Program Memory Size: 14KB (8K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 368Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F87X
TABLE 10-8:
FIGURE 10-9:
FIGURE 10-10:
DS30292C-page 106
0Bh, 8Bh,
10Bh,18Bh
0Ch
18h
19h
8Ch
98h
99h
Legend: x = unknown, - = unimplemented, read as '0'. Shaded cells are not used for synchronous master transmission.
Note 1: Bits PSPIE and PSPIF are reserved on PIC16F873/876 devices; always maintain these bits clear.
RC7/RX/DT pin
RC6/TX/CK pin
TXREG reg
Write to
Address
(Interrupt Flag)
TXEN bit
TRMT bit
Note: Sync Master mode; SPBRG = ’0’. Continuous transmission of two 8-bit words.
TXIF bit
RC7/RX/DT pin
RC6/TX/CK pin
TXREG Reg
Q1Q2 Q3Q4 Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2 Q3Q4
INTCON
PIR1
RCSTA
TXREG
PIE1
TXSTA
SPBRG
’1’
Name
TRMT bit
TXEN bit
TXIF bit
Write to
Write Word1
REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
USART Transmit Register
Baud Rate Generator Register
PSPIF
PSPIE
SYNCHRONOUS TRANSMISSION
SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
CSRC
SPEN
Bit 7
GIE
(1)
(1)
bit 0
PEIE
ADIF
ADIE
Bit 6
RX9
TX9
Write Word2
bit 1
Word 1
SREN CREN
TXEN
RCIF
RCIE
Bit 5
T0IE
bit0
SYNC
bit 2
INTE
Bit 4
TXIF
TXIE
bit1
SSPIF
SSPIE CCP1IE TMR2IE TMR1IE
RBIE
Bit 3
—
—
Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4
CCP1IF TMR2IF TMR1IF
BRGH
FERR
bit 7
Bit 2
T0IF
bit2
OERR
TRMT
bit 0
INTF
Bit 1
Word 2
bit 1
RX9D
TX9D
Bit 0
R0IF
bit6
2001 Microchip Technology Inc.
0000 000x
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
Value on:
POR,
BOR
bit7
Value on all
0000 000u
0000 0000
0000 -00x
0000 0000
0000 0000
0000 -010
0000 0000
RESETS
bit 7
other
’1’