PIC16C765SLASHP datasheet(84/158 Pages) MICROCHIP

84 / 158 page

PIC16C745/765

DS41124A-page 84

Advanced Information

TABLE 11-8:

REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION

FIGURE 11-6: SYNCHRONOUS TRANSMISSION

FIGURE 11-7: 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,

BOR

Value on all

other Resets

0Ch

PIR1

PSPIF(1)

ADIF

RCIF

TXIF

USBIF

CCP1IF

TMR2IF

TMR1IF

0000 0000

18h

RCSTA

SPEN

RX9

SREN

CREN

—

FERR

OERR

RX9D

0000 -00x

19h

TXREG

USART Transmit Register

0000 0000

8Ch

PIE1

PSPIE(1)

ADIE

RCIE

TXIE

USBIE

CCP1IE

TMR2IE

TMR1IE

0000 0000

98h

TXSTA

CSRC

TX9

TXEN

SYNC

—

BRGH

TRMT

TX9D

0000 -010

99h

SPBRG

Baud Rate Generator Register

0000 0000

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 the PIC16C745; always maintain these bits clear.

bit 0

bit 1

bit 7

WORD 1

Q1Q2 Q3Q4 Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2 Q3Q4

Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3Q4 Q1Q2 Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4Q1 Q2Q3 Q4

bit 2

bit 0

bit 1

bit 7

RC7/RX/DT pin

RC6/TX/CK pin

Write to

TXREG reg

TXIF bit

(Interrupt flag)

TRMT

TXEN bit

’1’

Note: Sync master mode; SPBRG = ’0’. Continuous transmission of two 8-bit words

WORD 2

TRMT bit

Write word1

Write word2

RC7/RX/DT pin

RC6/TX/CK pin

Write to

TXREG reg

TXIF bit

TRMT bit

bit0

bit1

bit2

bit6

bit7

TXEN bit

PIC16C765/P Datasheet(PDF) 84 Page - Microchip Technology

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