Zilog EZ80F916 - Manual (Page 26)

eZ80F91 Modular Development Kit
User Manual
UM017010-0112 eZ80Acclaim! MDS Adapter Board Test Switch and LEDs
21
eZ80Acclaim! MDS Adapter Board Test Switch and LEDs
The MDS Adapter Board contains a Test pushbutton switch (S1) and two
LEDs (D1 and D2) that function as follows:
•
Pressing the Test pushbutton S1 pulls PB3 Low
•
The yellow LED, D1, is controlled by PB5 (active Low)
•
The green LED, D2, is illuminated when power is applied to the board