CY545 Stepper System Controller
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CY545 Thumbwheel Switch
Parameter Addresses
Addresses
Group 1
Parameter
87H - 80H
8FH - 88H
97H - 90H
9CH - 98H
A2H - A0H
AAH - A8H
B2H - B0H
BCH - B8H
N command number of steps
P command target position
A command at position
D command delay value
R command step rate
S command acceleration slope
F command first rate
Y command memory address
8 digits
8 digits
8 digits
5 digits
3 digits
3 digits
3 digits
5 digits
Group 2
42H - 40H
4AH - 48H
52H - 50H
62H - 60H
6AH - 68H
72H - 70H
7CH - 78H
B command bit number
H command bit number
T command bit number
W command bit number
J command byte address
L command repeat count
Z command repeat count
3 digits
3 digits
3 digits
3 digits
3 digits
3 digits
5 digits
Group 3
C2H - C0H
CAH - C8H
O command mode value
? command query letter code
3 digits
3 digits
Each parameter has been assigned a potential range of 8 addresses, to make the address
decoding easier. Only the addresses shown are actually used to read digit values. The CY545
will not generate the unused address values.
Any parameter that will not be read from switches does not require the 74LS156 or switches for
that parameter. Any group of parameters that will not be read from switches does not require
the 74LS138 decoder either.
© 2002 Cybernetic Micro Systems
49
Chapter 13 - Thumbwheel Switch Support
ETC [ ETC ]
