Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 用户手册
产品代码
DEMO9S12XHY256
Liquid Crystal Display (LCD40F4BV2) Block Description
MC9S12XHY-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
563
17.4.4.4
1/3 Duty Multiplexed with 1/3 Bias Mode
Duty = 1/3:DUTY1 = 1, DUTY0 = 1
Bias = 1/3:BIAS = 0 or BIAS = 1
V
0
= VSSX, V
1
= VLCD * 1/3, V
2
= VLCD * 2/3, V
3
= VLCD
- BP3 is not used, a maximum of 120 segments are displayed.
Figure 17-13. 1/3 Duty and 1/3 Bias
+VLCD
×
1/3
-VLCD
×
1/3
+VLCD
×
1/3
-VLCD
×
1/3
VLCD
×
1/3
VLCD
×
1/3
VLCD
×
1/3
VLCD
×
1/3
0
VLCD
VSSX
BP0
+VLCD
-VLCD
BP0-FPx (OFF)
1 Frame
VLCD
×
2/3
+VLCD
×
2/3
-VLCD
×
2/3
VLCD
VSSX
BP1
VLCD
×
2/3
VLCD
VSSX
BP2
VLCD
×
2/3
0
+VLCD
-VLCD
BP1-FPx (ON)
+VLCD
×
2/3
-VLCD
×
2/3
VLCD
VSSX
FPx (x010)
VLCD
×
2/3