Справочник Пользователя для Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256
Модели
DEMO9S12XHY256
Liquid Crystal Display (LCD40F4BV2) Block Description
MC9S12XHY-Family Reference Manual, Rev. 1.04
564
Freescale Semiconductor
17.4.4.5
1/4 Duty Multiplexed with 1/3 Bias Mode
Duty = 1/4:DUTY1 = 0, DUTY0 = 0
Bias = 1/3:BIAS = 0 or BIAS = 1
V
0
= VSSX, V
1
= VLCD * 1/3, V
2
= VLCD * 2/3, V
3
= VLCD
- A maximum of 160 segments are displayed.
Figure 17-14. 1/4 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
VLCD
×
1/3
0
VLCD
VSSX
BP0
+VLCD
-VLCD
BP0-FPx (ON)
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 (OFF)
+VLCD
×
2/3
-VLCD
×
2/3
VLCD
VSSX
FPx (1001)
VLCD
×
2/3
VLCD
VSSX
BP3
VLCD
×
2/3