MC9S12HZ256 Datasheet, PDF (253/692 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Chapter 8 Liquid Crystal Display (LCD32F4BV1)
8.4.5.2 1/2 Duty Multiplexed with 1/2 Bias Mode
Duty = 1/2:DUTY1 = 1, DUTY0 = 0
Bias = 1/2:BIAS = 0
V₀ = VSSX, V₁ = V₂ = VLCD * 1/2, V₃ = VLCD
- BP2 and BP3 are not used, a maximum of 64 segments are displayed.
BP0
BP1
FPx (xx10)
FPy (xx00)
FPz (xx11)
1 Frame
BP0-FPx (OFF)
BP1-FPx (ON)
BP0-FPy (OFF)
BP0-FPz (ON)
Figure 8-10. 1/2 Duty and 1/2 Bias
VLCD
VLCD × 1/2
VSSX
VLCD
VLCD × 1/2
VSSX
VLCD
VLCD × 1/2
VSSX
VLCD
VLCD × 1/2
VSSX
VLCD
VLCD × 1/2
VSSX
+VLCD
+VLCD × 1/2
0
-VLCD × 1/2
-VLCD
+VLCD
+VLCD × 1/2
0
-VLCD × 1/2
-VLCD
+VLCD
+VLCD × 1/2
0
-VLCD × 1/2
-VLCD
+VLCD
+VLCD × 1/2
0
-VLCD × 1/2
-VLCD
MC9S12HZ256 Data Sheet, Rev. 2.04
Freescale Semiconductor
253