S912XHZ512F1VAG Datasheet, PDF (425/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

Chapter 10 Liquid Crystal Display (LCD32F4BV1) Block Description
10.4.5.3 1/2 Duty Multiplexed with 1/3 Bias Mode
Duty = 1/2:DUTY1 = 1, DUTY0 = 0
Bias = 1/3:BIAS = 1
V₀ = VSSX, V₁ = VLCD * 1/3, V₂ = VLCD * 2/3, V₃ = VLCD
- BP2 and BP3 are not used, a maximum of 64 segments are displayed.
1 Frame
BP0
BP1
FPx (xx10)
FPy (xx00)
FPz (xx11)
BP0-FPx (OFF)
BP1-FPx (ON)
BP0-FPy (OFF)
BP0-FPz (ON)
Figure 10-11. 1/2 Duty and 1/3 Bias
VLCD
VLCD × 2/3
VLCD × 1/3
VSSX
VLCD
VLCD × 2/3
VLCD × 1/3
VSSX
VLCD
VLCD × 2/3
VLCD × 1/3
VSSX
VLCD
VLCD × 2/3
VLCD × 1/3
VSSX
VLCD
VLCD × 2/3
VLCD × 1/3
VSSX
+VLCD
+VLCD × 2/3
+VLCD × 1/3
0
-VLCD × 1/3
-VLCD × 2/3
-VLCD
+VLCD
+VLCD × 2/3
+VLCD × 1/3
0
-VLCD × 1/3
-VLCD × 2/3
-VLCD
+VLCD
+VLCD × 2/3
+VLCD × 1/3
0
-VLCD × 1/3
-VLCD × 2/3
-VLCD
+VLCD
+VLCD × 2/3
+VLCD × 1/3
0
-VLCD × 1/3
-VLCD × 2/3
-VLCD
MC9S12XHZ512 Data Sheet, Rev. 1.06
Freescale Semiconductor
425