mc68hc05l25 Freescale Semiconductor, Inc, mc68hc05l25 Datasheet - Page 109

• Manufacturer Part Number: mc68hc05l25
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

The electric potential waveform for the E segment (between FP0 and BP2) is illustrated in
This segment is not turned ON.
The methods described will determine whether to turn ON or turn OFF the LCD segment. The waveform
elements which select or do not select the BP and FP waveforms are shown in
Freescale Semiconductor
BP2–FP0
SELECTED
NOT SELECTED
Figure 11-12. E Segment Electric Potential Waveform
FP DATA LATCH ->
BP
V
V
V
V
V
V
V
V
DD
LCD1
LCD2
LCD3
DD
LCD1
LCD2
LCD3
Figure 11-13. Waveform Elements
MC68HC05L25 Data Sheet, Rev. 3.1
FP
SELECTED
ON
OFF
1
+V
+2 V
+V
0
–V
–2
–V
+V
+2
+V
0
–V
–2 V
–V
V
V
V
V
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
VLCD
VLCD
DD
LCD1
LCD2
LCD3
LCD
LCD
/3
/3
/3
/3
/3
/3
/3
/3
NOT SELECTED
OFF
ON
LCD Connection and LCD Driver Operation
0
+V
+2
+V
0
–VLCD/3
–2VLCD/3
–V
+V
+2 V
+V
0
–V
–2
–V
V
V
V
V
VLCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
VLCD
DD
LCD1
LCD2
LCD3
LCD
/3
/3
/3
Figure
/3
/3
/3
V
V
V
0
–V
–V
–V
LCD
LCD1
LCD2
LCD2
LCD1
LCD
11-13.
Figure
11-12.
109