參數(shù)資料
型號: HD404829R
廠商: Hitachi,Ltd.
英文描述: AS Microcomputer Incorporating a LCD controller/Driver Circuit(帶LCD控制/驅(qū)動電路的微計(jì)算機(jī))
中文描述: 由于微機(jī)安裝有LCD控制器/驅(qū)動電路(帶液晶控制/驅(qū)動電路的微計(jì)算機(jī))
文件頁數(shù): 98/147頁
文件大?。?/td> 519K
代理商: HD404829R
HD404829R Series
98
LCD Controller/Driver
The MCU has an LCD controller and driver which drive 4 common signal pins and 52 segment pins. The
controller consists of a RAM area in which display data is stored, a display control register (LCR: $01B),
and a duty-cycle/clock-control register (LMR: $01C) (figure 87).
Four duty cycles and the LCD clock are programmable, and a built-in dual-port RAM ensures that display
data can be automatically transmitted to the segment signal pins without program intervention. If a 32-kHz
oscillation clock is selected as the LCD clock source, the LCD can even be used in watch mode, in which
the system clock stops.
Internal LCD power supply switch
52
2
2
4
4
3
LCD mode
register
(LMR)
2
V
CC
V
1
V
2
V
3
GND
COM1
COM2
COM3
COM4
SEG1
SEG4
SEG5
SEG8
SEG9
SEG20
SEG21
SEG52
C
C
C
C
Note: Pin function switching circuit
L
c
Common
signal
output
circuit
LCD control
register
(LCR)
LCD output
register 1
(LOR1)
LCD output
register 2
(LOR2)
LCD output
register 3
(LOR3)
Dual-port
display RAM
(52 digits)
Display
control
Pin control
Display data
Duty
selection
Clock
I
Segment
signal
output
circuit
Selector
Data bus
Clock line
Signal line
Figure 87 LCD Controller/Driver Block Diagram
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參數(shù)描述
HD404829RFS 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD404829RH 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a LCD controller/Driver Circuit
HD404829RSERIES 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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