PIC18F8520-IPT301 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F8520-IPT301

64/80-Pin High-Performance, 256 Kbit to 1 MbitEnhanced Flash Microcontrollers with A/D

Microchip Technology 

PIC18F6520/8520/6620/8620/6720/8720

GOTO

Unconditional Branch

Syntax:

[ label ] GOTO k

Operands:

0  k  1048575

Operation:

k  PC<20:1>

Status Affected: None

Encoding:

1st word (k<7:0>) 1110

2nd word(k<19:8>) 1111

1111 k7kkk

k19kkk kkkk

kkkk0

kkkk8

Description:

GOTO allows an unconditional

branch anywhere within the entire

2-Mbyte memory range. The 20-bit

value ‘k’ is loaded into PC<20:1>.

GOTO is always a two-cycle

instruction.

Words:

2

Cycles:

2

Q Cycle Activity:

Q1

Q2

Decode

Read literal

‘k’<7:0>

No

operation

No

operation

Q3

No

operation

No

operation

Q4

Read literal

’k’<19:8>,

Write to PC

No

operation

Example:

GOTO THERE

After Instruction

PC = Address (THERE)

INCF

Increment f

Syntax:

Operands:

Operation:

[ label ] INCF

0  f  255

d  [0,1]

a  [0,1]

(f) + 1  dest

f [,d [,a]

Status Affected:

Encoding:

Description:

C, DC, N, OV, Z

0010 10da ffff ffff

The contents of register ‘f’ are

incremented. If ‘d’ is ‘0’, the result

is placed in W. If ‘d’ is ‘1’, the result

is placed back in register ‘f’

(default). If ‘a’ is ‘0’, the Access

Bank will be selected, overriding

the BSR value. If ‘a’ = 1, then the

bank will be selected as per the

BSR value (default).

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Q2

Decode

Read

register ‘f’

Q3

Process

Data

Q4

Write to

destination

Example:

INCF

Before Instruction

CNT

Z

C

DC

= 0xFF

=0

=?

=?

After Instruction

CNT

Z

C

DC

= 0x00

=1

=1

=1

CNT, 1, 0

DS39609C-page 280

 2003-2013 Microchip Technology Inc.

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