參數(shù)資料
型號(hào)： LC75817
廠商： Sanyo Electric Co.,Ltd.
英文描述： 1/8 to 1/10 Duty Dot Matrix LCD Display Controller/Driver with Key Input Function
中文描述： 1月8日至1月10日當(dāng)值點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器的關(guān)鍵輸入功能
文件頁(yè)數(shù)： 29/43頁(yè)
文件大?。?/td> 829K
代理商： LC75817
No. 6144-29/43
LC75817E, 75817W
2. Block states during a system reset
(1) CLOCK GENERATOR, TIMING GENERATOR
When a reset is applied, the oscillator on the OSCI, OSCO pins is started forcibly. This generates the base clock and
enables instruction execution.
(2) INSTRUCTION REGISTER, INSTRUCTION DECODER
When a reset is applied, these circuits are forcibly initialized internally. Then, when instruction execution starts, the
IC operates according to those instructions.
(3) ADDRESS REGISTER, ADDRESS COUNTER
When a reset is applied, these circuits are forcibly initialized internally. Then, the DCRAM and the ADRAM
addresses are set when “Set AC address” instruction is executed.
(4) DCRAM, ADRAM, CGRAM
Since the contents of the DCRAM, ADRAM, and CGRAM become undefined during a reset, applications must
execute “DCRAM data write”, “ADRAM data write (If the ADRAM is used.)”, and “CGRAM data write (If the
CGRAM is used.)” instructions before executing a “display on/off control” instruction.
(5) CGROM
Character patterns are stored in this ROM.
(6) LATCH
Although the value of the data in the latch is undefined during a reset, the ADRAM, CGROM, and CGRAM data is
stored by executing a “display on/off control” instruction.
(7) COMMON DRIVER, SEGMENT DRIVER
These circuits are forced to the display off state when a reset is applied.
(8) CONTRAST ADJUSTER
Display contrast adjustment circuit operation is disabled when a reset is applied. After that, the display contrast can be
set by executing a “set display contrast” instruction.
(9) KEY SCAN, KEY BUFFER
When a reset is applied, these circuits are forcibly initialized internally, and key scan operation is disabled. Also, the
key data is all set to 0. After that, key scanning can be performed by executing a “set key scan output state”
instruction.
(10) GENERAL PORT
The general-purpose output ports are fixed at the low level (V
SS
) when a reset is applied.
(11) CCB INTERFACE, SHIFT REGISTER
These circuits go to the serial data input wait state.
相關(guān)PDF資料
PDF描述
LC75817NE 1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function
LC75817NW 1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function
LC75821E LCD Display Drivers
LC75822E LCD Display Drivers
LC75823E 1/3 Duty General-Purpose LCD Drivers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC75817E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty Dot Matrix LCD Display Controller/Driver with Key Input Function
LC75817NE 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function
LC75817NW 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function
LC75817W 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty Dot Matrix LCD Display Controller/Driver with Key Input Function
LC75818PT 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function
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