PIC18F6585 Datasheet, PDF (82/496 Pages) Microchip Technology – 64/68/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with ECAN Module

PIC18F6585/8585/6680/8680
If an indirect addressing operation is done where the
target address is an FSRnH or FSRnL register, the
write operation will dominate over the pre- or
post-increment/decrement functions.
FIGURE 4-9:
INDIRECT ADDRESSING OPERATION
RAM ^0h
Instruction
Executed
Opcode
Address
0FFFh
12
File Address = Access of an Indirect Addressing Register
BSR<3:0> 12
Instruction
Fetched
48
Opcode
File
12
FSR
FIGURE 4-10:
INDIRECT ADDRESSING
Indirect Addressing
11
FSR Register
Location Select
0
0000h
Data
Memory⁽¹⁾
Note 1: For register file map detail, see Table 4-2.
0FFFh
DS30491C-page 80
 2004 Microchip Technology Inc.