RS Automation X8 Series, Instruction Manual

Page: 208 / 327

X8 Instruction Set Reference Manual
11-2 Converion Instructions
The conversion instructions multiplex and de-multiplex data and perform
conversions between binary and decimal values.
DECD - Decode 4 to 1-of-16
Instruction Type: output
The DECD instruction uses the lower four bits of the source word to set
mu
l
tiplex 16 bit of the destination word.
The 4 bits of the source to destination shown in the table below:
Instruction Description
DECO
Decodes 4 to 1-of-16
Decodes a 4-bit value , turning on the corresponding bit in
the 16-bit destination.
ENCO
Encode 1-of-16 to 4.
Encodes a 16-bit source to a 4-bit value.
BIN
Convert From Binary Coded Decimal
Convert BCD source to decimal values.
TOD - Convert to Binary
Coded Decimal Converts the integer source value to BCD format and
stores it in the destination.
GCD - Gray Code
Converts Gray code data (Source) to an integer value and
stores it in the destination.
Parameter Data Table SFR
Address
Mode
Address
Level
Y X SR B TM
, C
T, C
R
N F ST A L MG,
PD
RP PS RTC HSC PTO, PWM STI EII BHI MM
I
CS
-C
om
ms
DLS-Dat
aLog
Immediate Direct Ind
irec
t
Bi
t
Wo
rd
Lo
ngW
ord
El
em
en
t
Source √ √ √ √ √ √ √ √ √
Destination √ √ √ √ √ √ √ √ √
DECO
EN ENO
IN N4.31 -
OUT - N4.32
0002h < > 0000000000000100
Decode 4 to 1-of-16
Source Bits Destination Bits
15 to 04 03 02 01 00 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
X 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
X 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0