PIC18F6585 Datasheet, PDF (100/496 Pages) Microchip Technology – 64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module

PIC18F6585/8585/6680/8680
6.2.3 16-BIT BYTE SELECT MODE
Figure 6-3 shows an example of 16-bit Byte Select
mode for PIC18F8X8X devices.
FIGURE 6-3:
16-BIT BYTE SELECT MODE EXAMPLE
PIC18F8X8X
AD<7:0>
373
A<20:1>
AD<15:8>
ALE
A<19:16>
OE
WRH
WRL
BA0
CE
LB
UB
373
A<20:1>
A<x:1>
OE
WR⁽¹⁾
JEDEC Word
A0
SRAM Memory
CE
LB
D<15:0>
D<15:0>
UB
Address Bus
Data Bus
Control Lines
Note 1: This signal only applies to table writes. See Section 5.1 “Table Reads and Table Writes”.
DS30491C-page 98
 2004 Microchip Technology Inc.