Datasheet

 2010 Microchip Technology Inc. Preliminary DS39974A-page 189
PIC18F47J13 FAMILY
11.2.2 WRITE TO SLAVE PORT
When chip select is active and a write strobe occurs
(PMCS = 1 and PMWR = 1), the data from PMD<7:0>
is captured into the lower PMDIN1L register. The
PMPIF and IBF flag bits are set when the write
ends.The timing for the control signals in Write mode is
displayed in Figure 11-3. The polarity of the control
signals are configurable.
11.2.3 READ FROM SLAVE PORT
When chip select is active and a read strobe occurs
(PMCS = 1 and PMRD = 1), the data from the
PMDOUT1L register (PMDOUT1L<7:0>) is presented
on to PMD<7:0>. Figure 11-4 provides the timing for
the control signals in Read mode.
FIGURE 11-3: PARALLEL SLAVE PORT WRITE WAVEFORMS
FIGURE 11-4: PARALLEL SLAVE PORT READ WAVEFORMS
PMCS
| Q4 | Q1 | Q2 | Q3 | Q4
PMWR
PMRD
PMD<7:0>
IBF
OBE
PMPIF
PMCS
| Q4 | Q1 | Q2 | Q3 | Q4
PMWR
PMRD
PMD<7:0>
IBF
OBE
PMPIF