PIC16LC925T-I/CL View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LC925T-I/CL

64/68-Pin CMOS Microcontrollers with LCD Driver

Microchip Technology 

13.1 Instruction Descriptions

ADDLW

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Add Literal and W

[ label ] ADDLW k

0 ≤ k ≤ 255

(W) + k → (W)

C, DC, Z

11 111x kkkk kkkk

The contents of the W register are

added to the eight-bit literal ’k’ and

the result is placed in the W

register.

1

1

Q1

Q2

Q3

Q4

Decode Read Process Write to

literal ’k’ data

W

Example:

ADDLW

Before Instruction:

W = 0x10

After Instruction:

W = 0x25

0x15

PIC16C925/926

ADDWF

Add W and f

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

[ label ] ADDWF f [,d]

0 ≤ f ≤ 127

d ∈ [0,1]

(W) + (f) → (destination)

C, DC, Z

00

0111 dfff ffff

Add the contents of the W register

with register ’f’. If ’d’ is 0, the result is

stored in the W register. If ’d’ is 1, the

result is stored back in register ’f’.

1

1

Q1

Q2 Q3

Q4

Decode Read Process Write to

register ’f’ data destination

Example

ADDWF FSR, 0

Before Instruction:

W

= 0x17

FSR = 0xC2

After Instruction:

W

= 0xD9

FSR = 0xC2

 2001 Microchip Technology Inc.

Preliminary

DS39544A-page 115

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