PIC18F6520-I Datasheet, PDF (132/380 Pages) Micrel Semiconductor – 64/80-Pin High-Performance, 256 Kbit to 1 Mbit Enhanced Flash Microcontrollers with A/D

PIC18F6520/8520/6620/8620/6720/8720
FIGURE 10-25: 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 10-19: REGISTERS ASSOCIATED WITH PARALLEL SLAVE PORT
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
PORTD Port Data Latch when written; Port pins when read
xxxx xxxx uuuu uuuu
LATD
LATD Data Output bits
xxxx xxxx uuuu uuuu
TRISD PORTD Data Direction bits
1111 1111 1111 1111
PORTE
—
—
—
—
— Read PORTE pin/
0000 0000 0000 0000
Write PORTE Data Latch
LATE
—
—
—
—
— LATE Data Output bits
xxxx xxxx uuuu uuuu
TRISE
—
—
—
—
— PORTE Data Direction bits
1111 1111 1111 1111
PSPCON IBF
OBF IBOV PSPMODE —
—
—
—
0000 ---- 0000 ----
INTCON
PIR1
PIE1
IPR1
GIE/
GIEH
PSPIF⁽¹⁾
PSPIE⁽¹⁾
PSPIP⁽¹⁾
PEIE/
GIEL
ADIF
ADIE
ADIP
TMR0IF
RCIF
RCIE
RCIP
INT0IE
TXIF
TXIE
TXIP
RBIE TMR0IF INT0IF RBIF 0000 0000 0000 0000
SSPIF
SSPIE
SSPIP
CCP1IF
CCP1IE
CCP1IP
TMR2IF
TMR2IE
TMR2IP
TMR1IF
TMR1IE
TMR1IP
0000 0000
0000 0000
0111 1111
0000 0000
0000 0000
0111 1111
Legend: x = unknown, u = unchanged, – = unimplemented, read as ‘0’. Shaded cells are not used by the Parallel Slave Port.
Note 1: Enabled only in Microcontroller mode for PIC18F8X20 devices.
DS39609B-page 130
 2004 Microchip Technology Inc.