HD66766R Datasheet, PDF (34/97 Pages) Hitachi Semiconductor – 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors

HD66766R
Rev. 1.0-1 / September 2002
GRAM address setting is not allowed in the standby mode. Ensure that the address is set within the
specified window address.
Table 24 GRAM Address Range
AD15 to AD0
"0000"H to “0083"H
"0100"H to "0183"H
"0200”H to "0283"H
"0300"H to "0383"H
GRAM Setting
Bitmap data for COM1
Bitmap data for COM2
Bitmap data for COM3
Bitmap data for COM4
"AC00"H to "AC83"H
"AD00"H to "AD83"H
"AE00"H to "AE83"H
"AF00"H to "AF83"H
Bitmap data for COM173
Bitmap data for COM174
Bitmap data for COM175
Bitmap data for COM176
Write Data to GRAM (R22h)
R/W RS DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD WD
W 1 _{15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0}
Figure 22 Write Data to GRAM Instrction
WD15–0 : Write 16-bit data to the GRAM; This data calls each grayscale palette. After a write, the
address is automatically updated according to the AM and I/D bit settings. During the stand by mode, the
GRAM cannot be accessed.
GRAM write data during normal mode
DB15 DB14 DB13 DB12 DB11 DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
WD15 WD14 WD13 WD12 WD11 WD10 WD9 WD8 WD7 WD6 WD5 WD4 WD3 WD2 WD1 WD0
R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B4 B3 B2 B1 B0
1 pixcel
Figure 23
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