參數(shù)資料
型號(hào): μPD78064B
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁(yè)數(shù): 25/64頁(yè)
文件大?。?/td> 391K
代理商: ΜPD78064B
25
μ
PD78064B
5.8
LCD Controller/Driver
An LCD controller/driver with the following functions is incorporated.
Selection of 5 types of display mode
16 of the segment signal of outputs can be switched to input/output ports in units of 2. (P80/S39 to P87/S32,
P90/S31 to P97/S24)
Table 5-4. Display Mode Types and Maximum Number of Display Pixels
Bias Method
Time Multiplexing
Common Signal Used
Maximum Number of Display Pixels
1/2
Static
2
3
3
4
COM0 (COM1 to COM3)
COM0, COM1
COM0 to COM2
COM0 to COM2
COM0 to COM3
40 (40 segments
×
1 common)
80 (40 segments
×
2 commons)
120 (40 segments
×
3 commons)
1/3
160 (40 segments
×
4 commons)
Figure 5-11. LCD Controller/Driver Block Diagram
V
LC2
V
LC1
V
LC0
BIAS
COM3
COM2
COM1
COM0
S39/P80
S0
S23
S24/P97
LCDCL
f
W
2
9
f
W
2
8
f
W
2
7
f
W
2
6
Internal Bus
Display
Data Memory
Segment
Data Selector
Port
Output Data
Segment Driver
Prescaler
Selector
Timing Controller
LCD Drive Voltage
Generator
Common Driver
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