DL205 Aliases
An alias is an alternate way of referring to certain memory types, such as timer/counter
current values, V-memory locations for I/O points, etc., which simplifies understanding the
memory address. The use of the alias is optional, but some users may find the alias to be
helpful when developing a program. The table below shows how the aliases can be used.
DL205 User Manual, 4th Edition, Rev. B
3–52
Chapter 3: CPU Specifications and Operations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
DL205 Aliases
Address Start
Alias Start
Example
V0
TA0
V0 is the timer accumulator value for timer 0, therefore, it’s
alias is TA0. TA1 is the alias for V1, etc..
V1000
CTA0
V1000 is the counter accumulator value for counter 0,
therefore, it’s alias is CTA0. CTA1 is the alias for V1001, etc.
V40000
VGX
V40000 is the word memory reference for discrete bits GX0
through GX17, therefore, it’s alias is VGX0. V40001 is the word
memory reference for discrete bits GX20 through GX37,
therefore, it’s alias is VGX20.
V40200
VGY
V40200 is the word memory reference for discrete bits GY0
through GY17, therefore, it’s alias is VGY0. V40201 is the word
memory reference for discrete bits GY20 through GY37,
therefore, it’s alias is VGY20.
V40400
VX0
V40400 is the word memory reference for discrete bits X0
through X17, therefore, it’s alias is VX0. V40401 is the word
memory reference for discrete bits X20 through X37, therefore,
it’s alias is VX20.
V40500
VY0
V40500 is the word memory reference for discrete bits Y0
through Y17, therefore, it’s alias is VY0. V40501 is the word
memory reference for discrete bits Y20 through Y37, therefore,
it’s alias is VY20.
V40600
VC0
V40600 is the word memory reference for discrete bits C0
through C17, therefore, it’s alias is VC0. V40601 is the word
memory reference for discrete bits C20 through C37, therefore,
it’s alias is VC20.
V41000
VS0
V41000 is the word memory reference for discrete bits S0
through S17, therefore, it’s alias is VS0. V41001 is the word
memory reference for discrete bits S20 through S37, therefore,
it’s alias is VS20.
V41100
VT0
V41100 is the word memory reference for discrete bits T0
through T17, therefore, it’s alias is VT0. V41101 is the word
memory reference for discrete bits T20 through T37, therefore,
it’s alias is VT20.
V41140
VCT0
V41140 is the word memory reference for discrete bits CT0
through CT17, therefore, it’s alias is VCT0. V41141 is the word
memory reference for discrete bits CT20 through CT37,
therefore, it’s alias is VCT20.
V41200
VSP0
V41200 is the word memory reference for discrete bits SP0
through SP17, therefore, it’s alias is VSP0. V41201 is the word
memory reference for discrete bits SP20 through SP37,
therefore, it’s alias is VSP20.
