PIC16F688T-I/ST View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F688T-I/ST

14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F688

FIGURE 10-12: SYNCHRONOUS RECEPTION (MASTER MODE, SREN)

RX/DT

pin

TX/CK pin

(SCKP = 0)

bit 0

bit 1

bit 2

bit 3

bit 4

bit 5

bit 6

bit 7

TX/CK pin

(SCKP = 1)

Write to

bit SREN

SREN bit

CREN bit ‘0’

‘0’

RCIF bit

(Interrupt)

Read

RXREG

Note:

Timing diagram demonstrates Sync Master mode with bit SREN = 1 and bit BRGH = 0.

TABLE 10-8: REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER RECEPTION

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

BAUDCTL ABDOVF RCIDL

—

SCKP BRG16

—

WUE ABDEN 01-0 0-00 01-0 0-00

INTCON

GIE

PEIE

T0IE

INTE

RAIE

T0IF

INTF

RAIF 0000 000x 0000 000x

PIE1

EEIE

ADIE

RCIE

C2IE

C1IE

OSFIE

TXIE TMR1IE 0000 0000 0000 0000

PIR1

EEIF

ADIF

RCIF

C2IF

C1IF

OSFIF

TXIF TMR1IF 0000 0000 0000 0000

RCREG EUSART Receive Data Register

0000 0000 0000 0000

RCSTA

SPEN

RX9

SREN CREN ADDEN FERR OERR RX9D 0000 000x 0000 000x

SPBRG

BRG7 BRG6 BRG5 BRG4 BRG3 BRG2 BRG1 BRG0 0000 0000 0000 0000

SPBRGH BRG15 BRG14 BRG13 BRG12 BRG11 BRG10 BRG9 BRG8 0000 0000 0000 0000

TRISC

—

—

TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 --11 1111 --11 1111

TXREG EUSART Transmit Data Register

0000 0000 0000 0000

TXSTA

CSRC

TX9

TXEN SYNC SENDB BRGH TRMT TX9D 0000 0010 0000 0010

Legend: x = unknown, – = unimplemented read as ‘0’. Shaded cells are not used for Synchronous Master Reception.

DS41203D-page 106

© 2007 Microchip Technology Inc.

Share Link: