PIC16F877A-I/PT Microchip Technology Inc., PIC16F877A-I/PT Datasheet - Page 106

• Manufacturer Part Number: PIC16F877A-I/PT
• Description: 44 PIN, 7 KB FLASH, 368 RAM, 33 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F877A-I/PT

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 33
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin TQFP
• Programmable Memory: 14K Bytes
• Ram Size: 368 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F87X
FIGURE 10-7:
FIGURE 10-8:
TABLE 10-7:
DS30292C-page 104
0Bh, 8Bh,
10Bh,18Bh
0Ch
18h
1Ah
8Ch
98h
99h
Legend: x = unknown, - = unimplemented locations read as '0'. Shaded cells are not used for asynchronous reception.
Note 1: Bits PSPIE and PSPIF are reserved on PIC16F873/876 devices; always maintain these bits clear.
Address
RC7/RX/DT (pin)
RC7/RX/DT (pin)
Load RSR
Read
RCIF
Note:
Load RSR
Read
RCIF
Note:
INTCON
PIR1
RCSTA
RCREG
PIE1
TXSTA
SPBRG
Name
This timing diagram shows a data byte followed by an address byte. The data byte is not read into the RCREG (receive buffer)
because ADDEN was not updated and still = 0.
This timing diagram shows a data byte followed by an address byte. The data byte is not read into the RCREG (receive buffer)
because ADDEN = 1.
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
START
START
USART Receive Register
Baud Rate Generator Register
PSPIF
PSPIE
ASYNCHRONOUS RECEPTION WITH ADDRESS DETECT
ASYNCHRONOUS RECEPTION WITH ADDRESS BYTE FIRST
bit
bit
CSRC
SPEN
Bit 7
GIE
bit0
bit0
(1)
(1)
Bit8 = 1, Address Byte
Bit8 = 0, Data Byte
PEIE
ADIF
ADIE
Bit 6
bit1
bit1
RX9
TX9
SREN
TXEN
RCIE
RCIF
Bit 5
T0IE
bit8
bit8
CREN ADDEN
SYNC
INTE
Bit 4
TXIF
TXIE
STOP
STOP
bit
bit
START
START
SSPIE
SSPIF
bit
bit
RBIE
Bit 3
—
Bit8 = 1, Address Byte
Bit8 = 0, Data Byte
bit0
bit0
CCP1IE TMR2IE TMR1IE 0000 0000
CCP1IF TMR2IF TMR1IF 0000 0000
BRGH
FERR
Bit 2
T0IF
bit8
bit8
OERR
TRMT
Bit 1
INTF
STOP
STOP
bit
bit
Word 1
RCREG
Word 1
RCREG
RX9D
TX9D
R0IF
Bit 0
2001 Microchip Technology Inc.
0000 000x
0000 0000
0000 -010
0000 0000
0000 000x
Value on:
POR,
BOR
0000 0000
0000 000x
0000 0000
0000 0000
0000 -010
0000 0000
0000 000u
Value on
RESETS
all other