HD66789 Datasheet, PDF (36/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Display Control 1 (R07h)
Preliminary
R/W RS
W1
IB15 IB14 IB13 IB12 IB11 IB10 IB9 IB8 IB7 IB6 IB5 IB4 IB3 IB2 IB1 IB0
0 0 0 PT1 PT0 VLE2 VLE1 SPT 0 0 GON DTE CL REV D1 D0
PT1-0: Determine the kind of source output in a non-display area in the partial display mode. For details,
see the “Screen-split drive function” section.
PT1-0 bits
PT1 PT0
0
0
0
1
1
0
1
1
Source Output for Non-display Area
Positive Polarity Negative Polarity
V31
V0
V31
V0
GND
GND
High impedance
High impedance
VLE2–1: When VLE1 = 1, the first screen is scrolled in the vertical direction. When VLE2 = 1, the second
screen is scrolled in the vertical direction. The first and second screens cannot be scrolled simultaneously.
This function is not available with the external display interface mode. In this case, make sure VLE2-1 = 0.
VLE Bits
VLE2
0
0
1
1
VLE1
0
1
0
1
Image on 2nd Screen
Stationary
Stationary
Scrolled
Setting disabled
Image on 1st Screen
Stationary
Scrolled
Stationary
Setting disabled
CL: When CL = 1, 8-color display mode is selected. For details, see the “8-Color Display Mode” section.
CL Bit
CL
Colors
0
262,144
1
8
SPT: When SPT = 1, liquid crystal is driven with 2 split screens. For details, see the “Screen Split Drive
Function” section. This function is not available in the external display interface mode. In this case, make
sure SPT = 0.
Rev.0.12, May 09 2003, page 36 of 156