參數(shù)資料
型號： HD667B66R
廠商： Hitachi,Ltd.
英文描述： 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
中文描述： 132 × 176點(diǎn)圖形LCD控制器/驅(qū)動器的65K色
文件頁數(shù)： 33/97頁
文件大小： 681K
代理商： HD667B66R
HD66766R Rev. 1.0-1 / September 2002
33
Figure 19
Window Address Setting Range
Note:
1. Ensure that the window address area is within the GRAM address space.
2. In high-speed write mode, data are written to GRAM in four-words.
Thus, dummy write operations should be inserted depending on the window address
area. For details, see the High-Speed Burst RAM Write Function section.
RAM Write Data Mask (R20h)
Figure 20RAM Write Data Mask Instruction
WM15–0:
In writing to the GRAM, these bits mask writing in a bit unit. When WM15 = “1”, this bit
masks the write data of DB11 and does not write to the GRAM. Similarly, the WM10 to 0 bits mask the
write data of DB15 to 0 in a bit unit. When HDZ = “1”, mask processing is performed for 12-bit data
after dither processing. For details, see the Write Data Mask Function section.
RAM Address Set (R21h)
Figure 21RAM Address Set Instruction
AD15–0:
Initially set GRAM addresses to the address counter (AC). Once the GRAM data is written,
the AC is automatically updated according to the AM and I/D bit settings. This allows consecutive
accesses without resetting addresses. Once the GRAM data is read, the AC is not automatically updated.
HSA
HEA
VSA
VEA
0000h
AF83h
GRAM Address space
Window Address
Window address setting range:
"00"h HSA7-0 HEA7-0 "83"h
"00"h VSA7-0 VEA7-0 "AF"h
R/W
RS
DB7
DB0
DB6
DB5
DB4
DB3
DB2
DB1
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
W
1
AD10
AD9
AD8
AD5
AD4
AD3
AD2
AD1
AD0
AD15
AD11
AD12
AD13
AD14
AD7
AD6
R/W
RS
DB7
DB0
DB6
DB5
DB DB3
DB2
DB1
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
W
1
WM7 WM6
WM5 WM4 WM3 WM2
WM1
WM0
WM11 WM10 WM9 WM8
WM12
WM13
WM14
WM15
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