SH7764 Datasheet, PDF (1102/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 22 LCD Controller (LCDC)
(3) Power-Supply Control for TFT Panels
(in) DON register
(out) LCD_VCPWC
pin
(out) Display data,
timing signal
Start power supply
Undefined
Start power cutoff
VCPE = ON
Arbitrary
Undefined
(out) LCD_VEPWC
pin
(out) LCD_DON pin
(Internal signal)
VEPE = ON
DONE = OFF
Register control
sequence
(a)
1 frame (b) 6 frame (c)
0 frame
(f)
(d)
(e) 1 frame 1 frame
0 frame
(out) LPS register
00b
LCD module
stopped
≠00b, 11b
11b
LCD module active
≠00b, 11b
00b
LCD module
stopped
Figure 22.6 Power-Supply Control Sequence and States of the LCD Module
(4) Power Supply Control for LCD panels other than TFT
(in) DON register
(out) LCD_VCPWC
pin
Start power supply (Internal signal) Start power cutoff
(out) Display data,
timing signal
Undefined
(out) LCD_VEPWC
pin
(out) LCD_DON pin
Arbitrary
(Internal signal)
(Internal signal)
Undefined
Register control
sequence
(a) 0 frame
(b) 0 frame
(c) 0 frame
(f) 0 frame
(e) 0 frame
(d) 0 frame
(out) LPS register
00b
LCD module
stopped
11b
LCD module active
00b
LCD module stopped
VCPE = OFF
VEPE = OFF
DONE = OFF
Figure 22.7 Power-Supply Control Sequence and States of the LCD Module
Rev. 1.00 Nov. 22, 2007 Page 1046 of 1692
REJ09B0360-0100