參數(shù)資料
型號： HD66705U
廠商： Hitachi,Ltd.
英文描述： Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動器)
中文描述： 低功耗點陣液晶顯示控制器/驅(qū)動器（圖形液晶顯示控制器/驅(qū)動器）
文件頁數(shù)： 42/81頁
文件大小： 426K
代理商： HD66705U
HD66705U
42
Transferring Serial Data
Clock-Synchronized Serial Interface
Setting the IM1 and IM0 pins (interface mode pins) to the GND and high levels, respectively, allows
standard clock-synchronized serial data transfer, using the chip select (CS*), SDA, and SCL lines. Here,
the
HD66705U
exclusively receives data.
The
HD66705U
initiates serial data transfer by transferring the start byte at the falling edge of the CS* input.
It ends serial data transfer at the rising edge of the CS* input.
The
HD66705U
is selected when the 6-bit chip address in the start byte transferred from the transmitting
device matches the 6-bit (device) identification code assigned to the
HD66705U
. The
HD66705U
, when
selected, receives the subsequent data strings. Any identification code can be assigned by the DB5/ID5 to
DB0/ID0 pins. Two different chip addresses must be assigned to a single
HD66705U
because the seventh bit
of the start byte is used as a register select bit (RS): when RS = 0, an instruction can be issued and when RS
= 1, data can be written to a RAM. The eighth bit of the start byte must be 0.
After receiving the start byte, the
HD66705U
receives the subsequent data as an
HD66705U
instruction or as
RAM data. Data is transferred with the MSB first. To transfer data consecutively, adjust the data transfer
rate so that the
HD66705U
can complete the current instruction before the eighth bit of the next instruction is
transferred. See Table 17, Instruction List. If the next instruction is received during execution of the
previous instruction, the next instruction will be ignored. Note that the display-clear instruction alone
requires longer execution time than the others.
Figure 23 shows the clock-synchronised serial interface timing sequence.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66710 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver)
HD66710A00FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver)
HD66710A00TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(Dot Matrix Liquid Crystal Display Controller/Driver)
HD66712 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Dot-Matrix Liquid Crystal Display Controller/Driver
HD66712A00TA0 制造商:Renesas Electronics Corporation 功能描述:
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