Datasheet

 2000-2013 Microchip Technology Inc. DS30569C-page 43
PIC16F870/871
FIGURE 4-9: PARALLEL SLAVE PORT WRITE WAVEFORMS
FIGURE 4-10: PARALLEL SLAVE PORT READ WAVEFORMS
TABLE 4-11: 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
— — — — —RE2RE1RE0---- -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.
Q1 Q2 Q3 Q4
CS
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
WR
RD
IBF
OBF
PSPIF
PORTD<7:0>
Q1 Q2 Q3 Q4
CS
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
WR
IBF
PSPIF
RD
OBF
PORTD<7:0>