HD66781 Datasheet, PDF (35/196 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
Instructions
The following are detail explanations of instructions with illustrations of instruction bits (IB15-0) assigned
to each interface.
Index/Status/Display control instruction
Index (IR)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
W0
*
**
* * ID10 ID9 ID8 ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0
The index instruction specifies the control register and the RAM control indexes that are accessed (R000h
to R508h). The register number is set in binary from “000_0000_0000” to “101_0000_1000”. Do not
access to the registers and bits to which the index and the instruction bit are not assigned.
Status read (SR)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
R0
0
00
00
0 0 L8 L7 L6 L5 L4 L3 L2 L1 L0
SR read the internal status of HD66781.
L[8:0]: Indicate the position of the raster-row driving liquid crystal.
Start Oscillation (R000h)
R/W RS IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
W1
*
**
**
**
**
*
*
**
* *1
R1
0
00
00
11
1
1
0
0
0
0
1
0
0
The start oscillation instruction restarts the oscillator in a halt state during the standby mode. After
executing this instruction, wait at least 10ms for stabilizing oscillation before issuing a next instruction.
For details, see “ Standby/Sleep mode” (p190.). The device code “0781”H is read out when this register is
forced to read out.
Rev.0.5, July.31.2003, page 35 of 196