Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 Manual De Usuario
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DEMO9S12XHY256
Liquid Crystal Display (LCD40F4BV2) Block Description
MC9S12XHY-Family Reference Manual, Rev. 1.04
560
Freescale Semiconductor
17.4.4.2
1/2 Duty Multiplexed with 1/2 Bias Mode
Duty = 1/2:DUTY1 = 1, DUTY0 = 0
Bias = 1/2:BIAS = 0
V
0
= VSSX, V
1
= V
2
= VLCD * 1/2, V
3
= VLCD
- BP2 and BP3 are not used, a maximum of 80 segments are displayed.
Figure 17-11. 1/2 Duty and 1/2 Bias
0
VLCD
VSSX
BP0
+VLCD
-VLCD
BP0-FPx (OFF)
1 Frame
VLCD
×
1/2
VLCD
VSSX
BP1
VLCD
VSSX
FPx (xx10)
VLCD
VSSX
FPy (xx00)
VLCD
VSSX
FPz (xx11)
+VLCD
×
1/2
-VLCD
×
1/2
0
+VLCD
-VLCD
BP1-FPx (ON)
+VLCD
×
1/2
-VLCD
×
1/2
0
+VLCD
-VLCD
BP0-FPy (OFF)
+VLCD
×
1/2
-VLCD
×
1/2
0
+VLCD
-VLCD
BP0-FPz (ON)
+VLCD
×
1/2
-VLCD
×
1/2
VLCD
×
1/2
VLCD
×
1/2
VLCD
×
1/2
VLCD
×
1/2