PIC16F870-I/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F870-I/SO

28/40-Pin, 8-Bit CMOS FLASH Microcontrollers

Microchip Technology 

PIC16F870/871

FIGURE 3-9: PARALLEL SLAVE PORT WRITE WAVEFORMS

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

CS

WR

RD

PORTD<7:0>

IBF

OBF

PSPIF

FIGURE 3-10: PARALLEL SLAVE PORT READ WAVEFORMS

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

CS

WR

RD

PORTD<7:0>

IBF

OBF

PSPIF

TABLE 3-11: REGISTERS ASSOCIATED WITH PARALLEL SLAVE PORT

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

08h

PORTD Port data latch when written: Port pins when read

xxxx xxxx uuuu uuuu

09h

PORTE —

——

—

—

RE2

RE1

RE0 ---- -xxx ---- -uuu

89h

TRISE IBF OBF IBOV PSPMODE — PORTE Data Direction Bits 0000 -111 0000 -111

0Ch

PIR1 PSPIF ADIF RCIF TXIF

— CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000

8Ch

PIE1 PSPIE ADIE RCIE TXIE

— CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000

9Fh ADCON1 ADFM — —

—

PCFG3 PCFG2 PCFG1 PCFG0 --0- 0000 --0- 0000

Legend: x = unknown, u = unchanged, - = unimplemented read as '0'. Shaded cells are not used by the Parallel Slave Port.

© 1999 Microchip Technology Inc.

Preliminary

DS30569A-page 37

Share Link: