參數(shù)資料
型號(hào): HD66731A01TA0L
廠商: Hitachi,Ltd.
英文描述: Dot-Matrix Liquid Crystal Display Controller/Driver Supporting Japanese Kanji, Korean Font Display
中文描述: 點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器支持日語漢字,韓文字體顯示
文件頁數(shù): 77/131頁
文件大?。?/td> 5332K
代理商: HD66731A01TA0L
HD66730/HD66731
76
RAM Data Register (R9)
This register (Figure 16) stores 8-bit data that is written to or read from the DDRAM, CGRAM, or
SEGRAM at the address indicated by the RAM address counter (RAC). The RAM selection bit (RM1/0)
selects the RAM (DDRAM, CGRAM, SEGRAM). After the said RAM is accessed, RAM address is
automatically incremented (decremented) by 1 according to the I/D bit.
Note that RAM selection bits (RM1/0) and RAM address register (R8) must be set before reading. If not,
the first data read is invalid. If read instructions continue to be executed, however, data will be read
correctly from the second read.
Test Register (RF)
This is a test register (Figure 17) and must be set to H'00 at all times. This register is automatically cleared
(H'00) by reset input; however, it must be cleared by software after power-on if the reset pin is not used.
R/W
0/1
RS
1
DB7
RD7 RD6 RD5 RD4RD3 RD2 RD1
DB0
RD0
Figure 16 RAM Data Register
R/W
0
RS
1
DB7
0
0
0
0
0
0
0
DB0
0
Figure 17 Test Register
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