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 

PIC16C925/926

SWAPF

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Swap Nibbles in f

[ label ] SWAPF f [,d]

0 ≤ f ≤ 127

d ∈ [0,1]

(f<3:0>) → (destination<7:4>),

(f<7:4>) → (destination<3:0>)

None

00

1110 dfff ffff

The upper and lower nibbles of reg-

ister ’f’ are exchanged. If ’d’ is 0, the

result is placed in W register. If ’d’ is

1, the result is placed in register ’f’.

1

1

Q1

Q2

Q3

Q4

Decode

Read

register ’f’

Process Write to

data destination

Example

SWAPF REG, 0

Before Instruction:

REG1 = 0xA5

After Instruction:

REG1 = 0xA5

W

= 0x5A

TRIS

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Example

Load TRIS Register

[ label ] TRIS f

5≤f≤7

(W) → TRIS register f;

None

00

0000 0110

0fff

The instruction is supported for

code compatibility with the

PIC16C5X products. Since TRIS

registers are readable and writ-

able, the user can directly address

them.

1

1

To maintain upward compatibil-

ity with future PIC16CXXX

products, do not use this

instruction.

DS39544A-page 130

Preliminary

 2001 Microchip Technology Inc.

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