參數(shù)資料
型號: HT49R50A
廠商: Holtek Semiconductor Inc.
英文描述: 8-Bit High Performance High speed Microcontroller(8位、高性能、高速微控制器)
中文描述: 8位高性能高速微控制器(8位,高性能,高速微控制器)
文件頁數(shù): 26/51頁
文件大?。?/td> 320K
代理商: HT49R50A
HT49R50A
26
November 29, 2000
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Display memory
LCD display memory
The HT49R50A provides an area of embedded
data memory for LCD display. This area is lo-
cated from 40H to 60H of the RAM at Bank 1.
Bankpointer(BP;locatedat04HoftheRAM)is
the switch between the RAM and the LCD dis-
play memory. When the BP is set as "1", any
data written into 40H~60H will effect the LCD
display. When the BP is cleared to "0", any data
written into 40H~60H means to access the gen-
eral purpose data memory. The LCD display
memory can be read and written to only by indi-
rect addressing mode using MP1. When data is
written into the display data area, it is auto-
matically read by the LCD driver which then
generates the corresponding LCD driving sig-
nals. To turn the display on or off, a "1" or a "0"
iswrittentothecorrespondingbitofthedisplay
memory,respectively.Thefigureillustratesthe
mapping between the display memory and LCD
pattern for the HT49R50A.
E
-
E
' *
.
'
% '
' )
# ' .
= : ' 7 " ' < # 8
.
=
< < :
" ( 0 " 1
* ( 0 * 1
( 0
7 " ( 0 " F
8 '
' 7 " ( 0 " F ' 8 '
Input/output ports
相關(guān)PDF資料
PDF描述
HT49R50 8-BIT MICROCONTROLLER
HT5D048 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
HT5D028 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
HT5D064 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
HT5F240 0.8m CMOS High Speed Gate Array(0.8m CMOS高速門陣列)
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