Virginia Controls, LLC
MH-3000 User Manual, 1_03C10-VC
Page 68
6.1.4
Show Internal Memory
The "Show Internal Memory" screen (abbreviated to "Show Int. Memory" on the LCD
display) shows the contents of the internal memory. This can be used to check the status
of internal registers, to show the operation of the system.
When this display is selected, the display will show five numbers on each row. The left
number in each row is a 4-digit hexadecimal number showing the memory address of the
number immediately to its right. The memory is 8-bit, so the 4 pairs of numbers on the
right show the contents of each of four consecutive memory addresses in hexadecimal
format.
A “$” before a number indicates the number is in hexadecimal not decimal.
All
memory addresses are hexadecimal, and the contents will be shown in hexadecimal.
1024 FF 00 2D 14
1028 00 FF 00 10
For example, if the display reads "1024 FF 00 2D 14", as shown above, then the top left
number "1024" shows the address of the first value; the contents of address "1024" is "FF";
the contents of address "1025" is "00"; the contents of address "1026" is "2D"; and the
contents of address "1027" is "14" (with each value being shown in hexadecimal).
NOTE: For addresses that show an ON or OFF condition, "00" is OFF, and "FF"
is ON.
6.1.4.1
Moving Around in the Internal Memory
Press Nxt to increase the addresses being
displayed by 4.
Press Prv to decrease the addresses being
displayed by 4.
Press 3 to increase the addresses being
displayed by 10(Hex).
Press 6 to decrease the addresses being
displayed by 10(Hex).
Press 2 to increase the addresses being
displayed by 100(Hex).
Press 5 to decrease the addresses being
displayed by 100(Hex).
1000
100
10
4
1000
100
10
4
1
Memory Address of
top left value
Contents of Memory Address
shown at top left ($1024)
Contents of next Memory
Address ($1025)
Contents of next Memory
Address ($1027)
Contents of next Memory
Address ($1026)
Contents of next four
Memory Addresses ($1028,
$1029, $102A, $102B)
Memory Address of
bottom left value
