PIC24FJ256GB108-I Datasheet, PDF (249/352 Pages) Microchip Technology – 64/80/100-Pin, 16-Bit Flash Microcontrollers with USB On-The-Go (OTG)

PIC24FJ256GB110 FAMILY
FIGURE 19-5:
MASTER MODE, PARTIALLY MULTIPLEXED ADDRESSING (SEPARATE READ
AND WRITE STROBES, TWO CHIP SELECTS)
PIC24F
PMA<13:8>
PMD<7:0>
PMA<7:0>
PMCS1
PMCS2
PMALL
PMRD
PMWR
Address Bus
Multiplexed
Data and
Address Bus
Control Lines
FIGURE 19-6:
MASTER MODE, FULLY MULTIPLEXED ADDRESSING (SEPARATE READ AND
WRITE STROBES, TWO CHIP SELECTS)
PIC24F
PMD<7:0>
PMA<13:8>
PMCS1
PMCS2
PMALL
PMALH
PMRD
PMWR
Multiplexed
Data and
Address Bus
Control Lines
FIGURE 19-7:
EXAMPLE OF A MULTIPLEXED ADDRESSING APPLICATION
PIC24F
PMD<7:0>
PMALL
PMALH
PMCS1
PMRD
PMWR
373 ^A<7:0>
D<7:0>
A<15:8>
373
A<15:0>
D<7:0>
CE
OE WR
Address Bus
Data Bus
Control Lines
FIGURE 19-8:
EXAMPLE OF A PARTIALLY MULTIPLEXED ADDRESSING APPLICATION
PIC24F
PMD<7:0>
PMALL
PMA<10:8>
PMCS1
PMRD
PMWR
373
A<10:8>
A<7:0>
D<7:0>
A<10:0>
D<7:0>
CE
OE WR
Address Bus
Data Bus
Control Lines
 2009 Microchip Technology Inc.
DS39897C-page 249