參數(shù)資料
型號: HD66108T00
廠商: Hitachi,Ltd.
英文描述: (RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics)
中文描述: (內(nèi)存提供165通道的LCD液晶點陣圖形驅(qū)動程序)
文件頁數(shù): 19/60頁
文件大?。?/td> 337K
代理商: HD66108T00
HD66108
972
(4) Limitations on Access
As shown in Figure 9, the display memory must not be rewritten until a time period of t
CL1
or longer
has elapsed after rewriting the control register’s DUTY bits or the mode register’s FFS bits. However,
display memory and registers other than the control register and mode register can be accessed even
during this time period. t
CL1
can be obtained from the following equation. If using an LSI with a frame
frequency of 60 Hz or greater, a time period of 1 ms should be sufficient.
(ms) ...... Equation 1
Ni·f
CLK
(kHz)
t
CL1
=
D2
D2 (duty correction value):
192 (duty = 1/32, 1/34, or 1/36)
128 (duty = 1/48 or 1/50)
96 (duty = 1/64 or 1/66)
Ni (frequency-division ratio specified by the mode register’s FFS bits):
2, 1, 1/2, 1/3, 1/4, 1/6, or 1/8
f
CLK
: Input clock frequency (kHz)
3.2 X and Y address Counter Auto-Incrementing Function
As described in “2. Display Memory Construction and Word Length Setting,” the HD66108T display
memory has X and Y addresses. Internal X address counter and Y address counter both employ an auto-
incrementing function. After display data is read or written, the X or Y address is incremented according
to the address increment direction selected by internal register.
Although X addresses up to 20 are valid when 8 bits make up one word (up to 27 when 6 bits make up
one word), the X address counter can count up to 31 since it is a 5-bit free counter. Similarly, although Y
addresses up to 64 are valid, the Y address counter can count up to 127. Consequently, X or Y address
must be reset at an appropriate point as shown in Figure 10.
Rewriting DUTY or FFS bits
Accessing other registers
Rewriting display memory
t
CL1
or longer
Figure 9 Rewriting Display Memory after Rewriting Registers
相關PDF資料
PDF描述
HD66110ST Column Driver(大液晶顯示平面的LCD驅(qū)動器)
HD66112T 160-Channel Segment Driver for Dot-Matrix Graphic Liquid Crystal Display in Super-Slim TCP(用于點陣圖形LCD的160通道段碼驅(qū)動器)
HD66113T 120-Channel Common Driver Packaged in a Slim Tape Carrier Package(點陣圖形LCD120通道驅(qū)動器)
HD66115T 160-Channel Common Driver Packaged in a Slim Tape Carrier Package(點陣圖形LCD160通道驅(qū)動器)
HD66120T 240-Channel Segment Driver for Dot-Matrix Graphic Liquid Crystal Display(用于點陣圖形LCD的240通道段碼驅(qū)動器)
相關代理商/技術參數(shù)
參數(shù)描述
HD66108TA0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics)
HD66108TB0 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics)
HD66110RT 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66110RTA8 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver
HD66110RTB0 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver