PIC16F689T-I/SO 查看數據表（PDF） - Microchip Technology

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PIC16F689T-I/SO

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

Microchip Technology 

PIC16F631/677/685/687/689/690

FIGURE 13-12: CLOCK SYNCHRONIZATION TIMING

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

SDA

DX

DX-1

SCL

CKP

WR

SSPCON

Master device

asserts clock

Master device

deasserts clock

TABLE 13-4: REGISTERS ASSOCIATED WITH I2C™ OPERATION(1)

Addr

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

0Bh/8Bh/ INTCON

10Bh/18Bh

GIE

PEIE

T0IE

INTE

RABIE

T0IF

INTF

RABIF 0000 000x 0000 000x

0Ch

PIR1

—

ADIF

RCIF

TXIF

SSPIF CCP1IF TMR2IF TMR1IF -000 0000 -000 0000

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 0000 0000

86h

TRISB

TRISB7 TRISB6 TRISB5 TRISB4

—

—

—

—

1111 ---- 1111 ----

93h

SSPMSK(2) MSK7

MSK6

MSK5

MSK4

MSK3

MSK2

MSK1

MSK0 1111 1111 1111 1111

94h

SSPSTAT

SMP(3) CKE(3)

D/A

P

S

R/W

UA

BF 0000 0000 0000 0000

8Ch

PIE1

—

ADIE

RCIE

TXIE SSPIE CCP1IE TMR2IF TMR1IF -000 0000 -000 0000

Legend:

Note 1:

2:

3:

– = Unimplemented locations, read as ‘0’, u = unchanged, x = unknown. Shaded cells are not used by the SSP module.

PIC16F677/PIC16F687/PIC16F689/PIC16F690 only.

SSPMSK register (Register 13-3) can be accessed by reading or writing to SSPADD register with bits SSPM<3:0> = 1001.

See Registers 13-2 and 13-3 for more details.

Maintain these bits clear.

DS41262E-page 196

© 2008 Microchip Technology Inc.

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