SH7764 Datasheet, PDF (1086/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 22 LCD Controller (LCDC)
22.3.17 LCDC Power-Supply Sequence Period Register (LDPSPR)
LDPSPR controls the power supply circuit that provides power to the LCD module. The timing to
start outputting the timing signals to the LCD_VEPWC and LCD_VCPWC pins is specified.
Bit: 15
Initial value: 1
R/W: R/W
14 13
ONA[3:0]
1
1
R/W R/W
12
1
R/W
11
0
R/W
10 9
ONB[3:0]
1
1
R/W R/W
8
0
R/W
7
0
R/W
6
5
OFFE[3:0]
0
0
R/W R/W
4
0
R/W
3
1
R/W
2
1
OFFF[3:0]
1
1
R/W R/W
0
1
R/W
Bit
Bit Name
15 to 12 ONA[3:0]
11 to 8 ONB[3:0]
Initial Value R/W
1111
R/W
0110
R/W
Description
LCDC Power-On Sequence Period
Set the period from LCD_VCPWC assertion to
starting output of the display data (LCD_D) and
timing signals (LCD_FLM, LCD_CL1, LCD_CL2,
and LCD_M_DISP) in the power-on sequence of the
LCD module in frame units.
Specify to the value of (the period)-1.
This period is the (a) period in figures 22.4 to 22.7,
Power-Supply Control Sequence and States of the
LCD Module.
LCDC Power-On Sequence Period
Set the period from starting output of the display
data (LCD_D) and timing signals (LCD_FLM,
LCD_CL1, LCD_CL2, and LCD_M_DISP) to the
LCD_VEPWC assertion in the power-on sequence
of the LCD module in frame units.
Specify to the value of (the period)-1.
This period is the (b) period in figures 22.4 to 22.7,
Power-Supply Control Sequence and States of the
LCD Module.
Rev. 1.00 Nov. 22, 2007 Page 1030 of 1692
REJ09B0360-0100