Radio Shack TRS-80 - Chapter 6: IF-THEN and GOTO Statements; Relational Operators; IF-THEN Statement

)"
"ZERO"
1
"ZERO"
1
L..-- r--
"Z ER 0"
+
1 ....... _---'
LJ LJ
LJ
LJ
"ZERO"
•
11- --------'
11... ---'
FIGURE 5. Input Conditioning Wavefonn
The signals that changed are very important to
the Video Processor section. The first,
LATCH,
is used to delay a character between RAM and
the character generator. The second signal. C1,
determines if the RAM has 10'24 or 512 useable
addresses.
30