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16F628 Datasheet(PDF) 86 Page - Microchip Technology

Part # 16F628
Description  FLASH-Based 8-Bit CMOS Microcontrollers
PDF  168 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

16F628 Datasheet(HTML) 86 Page - Microchip Technology

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PIC16F627A/628A/648A
DS40044A-page 84
Preliminary
 2002 Microchip Technology Inc.
TABLE 12-9:
REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
FIGURE 12-12:
SYNCHRONOUS TRANSMISSION
FIGURE 12-13:
SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR
Value on all
other
RESETS
0Ch
PIR1
EEIF
CMIF
RCIF
TXIF
—
CCP1IF TMR2IF TMR1IF
0000 -000 0000 -000
18h
RCSTA
SPEN
RX9
SREN CREN
ADEN
FERR
OERR
RX9D
0000 000x 0000 000x
19h
TXREG USART Transmit data register
0000 0000 0000 0000
8Ch
PIE1
EEIE
CMIE
RCIE
TXIE
—
CCP1IE TMR2IE TMR1IE
0000 -000 0000 -000
98h
TXSTA
CSRC
TX9
TXEN
SYNC
—
BRGH
TRMT
TX9D
0000 -010 0000 -010
99h
SPBRG Baud Rate Generator Register
0000 0000 0000 0000
Legend:
x = unknown, - = unimplemented, read as '0'. Shaded cells are not used for Synchronous Master Transmission.
BIT 0
BIT 1
BIT 7
WORD 1
Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1 Q2Q3Q4Q1Q2Q3Q4
BIT 2
BIT 0
BIT 1
BIT 7
RB1/RX/DT PIN
RB2/TX/CK PIN
WRITE TO
TXREG REG
TXIF BIT
(INTERRUPT FLAG)
TRMT
TXEN BIT
'1'
'1'
WORD 2
TRMT BIT
WRITE WORD1
WRITE WORD2
Note:
Sync Master Mode; SPBRG = ‘0’. Continuous transmission of two 8-bit words.
RB1/RX/DT PIN
RB2/TX/CK PIN
WRITE TO
TXREG REG
TXIF BIT
TRMT BIT
BIT0
BIT1
BIT2
BIT6
BIT7
TXEN BIT



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