r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1680
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r5s77631ay266bgv
Manufacturer Part Number
r5s77631ay266bgv
Description
Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S77631AY266BGV.pdf
(2026 pages)
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Section 37 LCD Controller (LCDC)
37.3.17 LCDC Power Management Mode Register (LDPMMR)
LDPMMR controls the power supply circuit that provides power to the LCD module. The usage
of two types of power-supply control pins, LCD_VCPWC and LCD_VEPWC, and turning on or
off the power supply function are selected.
Rev. 1.00 Oct. 01, 2007 Page 1614 of 1956
REJ09B0256-0100
Initial value:
Bit
15 to 12 ONC[3:0]
11 to 8
7
R/W:
Bit:
R/W
Bit Name
OFFD[3:0]
15
0
R/W
14
0
ONC[3:0]
R/W
13
0
Initial Value
0000
0000
0
R/W
12
0
R/W
11
0
R/W
10
R/W
R/W
R/W
R
OFFD[3:0]
0
R/W
9
0
LCDC Power-On Sequence Period
LCDC Power-Off Sequence Period
Description
Set the period from LCD_VEPWC assertion to
LCD_DON 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 (c) period in figures 37.4 to 37.7,
Power-Supply Control Sequence and States of the
LCD Module. For details on setting this register, see
table 37.6, Available Power-Supply Control-
Sequence Periods at Typical Frame Rates. (The
setting method is common for ONA, ONB, OFFD,
OFFE, and OFFF.)
Set the period from LCD_DON negation to
LCD_VEPWC negation in the power-off sequence
of the LCD module in frame units.
Specify to the value of (the period) -1.
This period is the (d) period in figures 37.4 to 37.7,
Power-Supply Control Sequence and States of the
LCD Module.
Reserved
This bit is always read as 0. The write value should
always be 0.
R/W
8
0
R
7
0
VCPE
R/W
6
0
VEPE
R/W
5
0
DONE
R/W
4
1
R
3
0
R
2
0
R
1
0
LPS[1:0]
R
0
0
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