PIC16F877-04SLASHP datasheet(79/218 Pages) MICROCHIP

79 / 218 page

 2001 Microchip Technology Inc.

DS30292C-page 77

PIC16F87X

9.2.3

SLEEP OPERATION

While in SLEEP mode, the I2C module can receive

addresses or data. When an address match or com-

plete byte transfer occurs, wake the processor from

SLEEP (if the SSP interrupt is enabled).

9.2.4

EFFECTS OF A RESET

A RESET disables the SSP module and terminates the

current transfer.

TABLE 9-3:

REGISTERS ASSOCIATED WITH I2C OPERATION

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on:

POR, BOR

Value on:

MCLR,

WDT

0Bh, 8Bh,

10Bh,18Bh

INTCON

GIE

PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF

0000 000x

0000 000u

0Ch

PIR1

PSPIF(1)

ADIF

RCIF

TXIF

SSPIF

CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000

8Ch

PIE1

PSPIE(1)

ADIE

RCIE

TXIE

SSPIE

CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000

0Dh

PIR2

—

(2)

—

EEIF

BCLIF

—

CCP2IF -r-0 0--0 -r-0 0--0

8Dh

PIE2

—

(2)

—

EEIE

BCLIE

—

CCP2IE -r-0 0--0 -r-0 0--0

13h

SSPBUF

Synchronous Serial Port Receive Buffer/Transmit Register

xxxx xxxx

uuuu uuuu

14h

SSPCON

WCOL

SSPOV

SSPEN

CKP

SSPM3 SSPM2

SSPM1

SSPM0

0000 0000

91h

SSPCON2

GCEN

ACKSTAT

ACKDT

ACKEN

RCEN

PEN

RSEN

SEN

0000 0000

93h

SSPADD

I2C Slave Address/Master Baud Rate Register

0000 0000

94h

SSPSTAT

SMP

CKE

D/A

R/W

0000 0000

Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by the SSP in I2C mode.

Note 1: These bits are reserved on PIC16F873/876 devices; always maintain these bits clear.

2: These bits are reserved on these devices; always maintain these bits clear.

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