HD66787 Datasheet, PDF (36/159 Pages) Renesas Technology Corp – 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat

HD66787
Preliminary
Write data to GRAM ^{Note 1)}
18 bits
0000000111001110
Conversion between RGB and BGR (BGR)
Logical/compare operation ^{Logical operation (write data)}
(LG2-0) ^{LG2-0 = 000: Replacement}
Compare operation (with compare register)
LG2-0 = 110: Replacement of matched write data
LG2-0 = 111: Replacement of unmatched write data
Write data to
GRAM (WM17-0) ^{Note 2)}
Write data mask (WM17-0)
GRAM
Note 1) Data write to GRAM is executed by 18 bits. Logical operation is also executed by 18 bits.
As to the assignment of bits, see the description regarding each bit data bus interface.
Note 2) Write data mask (WM17-0) is set with the RAM write data mask register.
Logic/Compare Operation
Display Control 1 (R07h)
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 0 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.
Rev.0.22, May.23.2003, page 36 of 159