HD66781 Datasheet, PDF (76/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

HD66781
Preliminary
RAM Address set in horizontal/vertical directions (R200h/R201h)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
W1
0
0
0
0
0
0
0
0
AD AD AD AD AD AD AD AD
[7] [6] [5] [4] [3] [2] [1] [0]
W1
0
0
0
0
0
0
0
AD AD AD AD AD AD AD AD AD
[16] [15] [14] [13] [12] [11] [10] [9] [8]
Note : Top R200h, Bottom R201h
AD[16:0]: Initialize GRAM address at AC (Address Counter). The address counter is automatically
updated in accordance with AM, I/D settings after data are written to GRAM. Data can be written
consecutively without making a new address setting. The address counter is not automatically updated
when data are read out from GRAM.
Table 45 GRAM address range
AD[16:0]
GRAM Setting
17’h00000 – 17’h000EF
Bitmap data for G1
17’h00100 – 17’h001EF
Bitmap data for G2
17’h00200 – 17’h002EF
Bitmap data for G3
17’h00300 – 17’h003EF
Bitmap data for G4
17’h00400 – 17’h004EF
Bitmap data for G5
:
:
17’h13F00 – 17’h13CEF
Bitmap data for G317
17’h13F00 – 17’h13DEF
Bitmap data for G318
17’h13F00 – 17’h13EEF
Bitmap data for G319
17’h13F00 – 17’h13FEF
Bitmap data for G320
Note 1) An address set is made every frame within the GRAM address range set by AD[16:0] at the falling
edge of VSYNC when RGB interface (RM=1) is selected.
Note 2) An address set is made when instructions are executed in the internal clock operation or the VSYNC
interface mode (RM = 0).
Note 3) Register values are loaded in both horizontal/vertical address counters when a setting is made for
either one of the R200h/R201h registers.
Rev.0.5, July.31.2003, page 76 of 196