PIC16F627-04/SO Microchip Technology Inc., PIC16F627-04/SO Datasheet - Page 80

• Manufacturer Part Number: PIC16F627-04/SO
• Description: 18 PIN, 1.75 KB FLASH, 224 RAM, 16 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F627-04/SO

• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 128 Bytes
• Input Output: 16
• Interface: SCI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin SOIC
• Programmable Memory: 1.75K Bytes
• Ram Size: 224 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

PIC16F62X
FIGURE 12-9:
FIGURE 12-10:
FIGURE 12-11:
DS40300C-page 78
Note 1: This timing diagram shows a data byte followed by an address byte. The data byte is not read into the RCREG
Note 1: This timing diagram shows an address byte followed by an data byte. The data byte is not read into the RCREG
RB1/RX/DT (PIN)
RB1/RX/DT (PIN)
RB1/RX/DT (PIN)
Note 1: This timing diagram shows an address byte followed by an data byte. The data byte is read into the RCREG
RCV SHIFT REG
RCV BUFFER REG
READ RCV
BUFFER REG
RCREG
RCIF
(INTERRUPT FLAG)
ADEN = 1
(ADDRESS MATCH
RCV SHIFT
REG
RCV BUFFER REG
READ RCV
BUFFER REG
RCREG
RCIF
(INTERRUPT FLAG)
ADEN = 1
(ADDRESS MATCH
RCV SHIFT
REG
RCV BUFFER REG
READ RCV
BUFFER REG
RCREG
RCIF
(INTERRUPT FLAG)
ADEN
(ADDRESS MATCH
ENABLE)
ENABLE)
ENABLE)
(Receive Buffer) because ADEN = 1 and Bit 8 = 0.
(receive buffer) because ADEN was not updated (still = 1) and Bit 8 = 0.
(Receive Buffer) because ADEN was updated after an address match, and was cleared to a ‘0’, so the contents of
the Receive Shift Register (RSR) are read into the Receive Buffer regardless of the value of Bit 8.
'1'
'1'
START
START
START
BIT
BIT
BIT
ASYNCHRONOUS RECEPTION WITH ADDRESS DETECT
ASYNCHRONOUS RECEPTION WITH ADDRESS BYTE FIRST
ASYNCHRONOUS RECEPTION WITH ADDRESS BYTE FIRST FOLLOWED BY
VALID DATA BYTE
BIT0
BIT0
BIT0
BIT8 = 1, ADDRESS BYTE
BIT8 = 1, ADDRESS BYTE
BIT8 = 0, DATA BYTE
BIT1
BIT1
BIT1
BIT8
BIT8
BIT8
STOP
STOP
STOP
Preliminary
BIT
BIT
BIT
WORD 1
RCREG
WORD 1
RCREG
START
START
START
BIT
BIT
BIT
BIT8 = 1, ADDRESS BYTE
BIT0
BIT0
BIT0
BIT8 = 0, DATA BYTE
BIT8 = 0, DATA BYTE
BIT8
BIT8
BIT8
STOP
STOP
STOP
BIT
BIT
BIT
WORD 2
RCREG
WORD 1
RCREG
 2003 Microchip Technology Inc.
'1'
'1'