Datasheet

PIC18F6585/8585/6680/8680
DS30491D-page 80  2003-2013 Microchip Technology Inc.
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
FIGURE 4-10: INDIRECT ADDRESSING
Opcode Address
File Address = Access of an Indirect Addressing Register
FSR
Instruction
Executed
Instruction
Fetched
RAM
Opcode
File
12
12
12
BSR<3:0>
8
4
0h
0FFFh
Note 1: For register file map detail, see Table 4-2.
Data
Memory
(1)
Indirect Addressing
FSR Register11
0
0FFFh
0000h
Location Select
18F8680.book Page 80 Tuesday, January 29, 2013 1:32 PM