HD66781 Datasheet, PDF (70/196 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
Gate Driver/ Power Supply IC Interface Control 1 (R110h)
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 TE 0
0
0
0
0
IDX IDX IDX
210
R
1
0
0
0
0
0
0
0 TE 0
0
0
0
0
IDX IDX IDX
210
Gate Driver/ Power Supply IC Interface Control 2 (R111h)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
W1
0
0
0
TB TB TB TB TB TB TB TB TB TB TB TB TB
12 11 10 9
8
7
6
5
4
3
2
1
0
IDX[2:0]: The index register of the instruction, which is transferred to the gate driver/power supply IC.
The instruction that corresponds to the index as determined by the IDX[2:0] setting is transferred to the
gate driver or power supply IC through a serial interface for the gate/power supply IC. The following
figures illustrates the bit array with which instructions are transferred. The upper 3 bits in the figures
corresponds to the IDX[2:0] bits. The instructions of the indexes determined by the IDX[2:0]settings as
below are transferred to the gate driver/power supply IC.
When any change will be made to the instruction setting to the gate driver/power supply IC, the setting
must be made first in the R111h register of HD 66781 before making a setting for IDX[2:0]. The transfer
start (TE = 1) starts transferring the instructions, which is then followed by the execution.
TE: The ENABLE for the serial transfer to the gate driver/power supply IC. TE=0 enables a serial transfer.
TE=1 starts a transfer to the gate driver/power supply IC. When the transfer is completed, TE=0 is returned.
A serial transfer takes 18 clocks at maximum (with reference to internal clocks). Do not make any changes
to the instructions that are being transferred. Other instructions can be executable even during the
instruction transfer.
Note 1) The transfer of the NL[5:0], AP[2:0], FLD[1:0] settings to the gate driver/power supply IC must be made right after
the instruction setting of HD66781. Make a same setting to the HD66781 and HD66783/HD667P21 with regard
to NL, AP, FLD registers. Otherwise, a proper operation is not guaranteed.
Note 2) As in the following figures, the bits to which no register is assigned must be overwritten with “0” or “1”.
Rev.0.5, July.31.2003, page 70 of 196