Table of Contents
Advertisement
Page 16
6.10 Power Save Modes
6.11 Core V
Power Supply
DD
6.12 IO V
Power Supply
DD
6.13 Adjustable LCD Panel Negative Power Supply
6.14 Adjustable LCD Panel Positive Power Supply
S1D13504
X19A-G-004-06
The S1D13504F00A supports one hardware and one software suspend Power Save Mode.
The hardware suspend mode is not supported by the S5U13504B00C.
The software suspend mode is controlled by the utility 13504PWR Software Suspend Power
Sequencing.
An independent fixed 3.3V power supply for Core V
voltage regulator is used for the power supply and is capable of supplying 500mA @ 3.3V.
The IO V
voltage is selectable between 3.3V and 5.0V through jumper JP2. For the 5.0V host bus
DD
interface, select IO V
at 5.0V, and for the 3.3V host bus interface, select IO V
DD
Refer to Table 2-3 "Jumper Settings," on page 8.
Most monochrome passive LCD panels require a negative power supply to provide between -18V
and -23V (I
=45mA). For ease of implementation, such a power supply has been provided as an
out
integral part of this design. The signal VLCD can be adjusted by R37 to supply an output voltage
from -14V to -23V and is enabled/disabled by the S1D13504 control signal LCDPWR.
Determine the panel's specific power requirements and set the potentiometer accordingly before
connecting the panel.
Most passive LCD passive color panels and most single monochrome 640x480 passive LCD panels
require a positive power supply to supply between +23V and +40V (I
mentation, such a power supply has been provided as an integral part of this design. The signal
VDDH can be adjusted by R31 to provide an output voltage from +23V to +40V and is
enabled/disabled by the S1D13504 control signal LCDPWR.
Determine the panel's specific power requirements and set the potentiometer accordingly before
connecting the panel.
Epson Research and Development
is provided. A National LP2960AIN-3.3
DD
S5U13504B00C Rev.1.0 ISA Bus Evaluation Board User Manual
Vancouver Design Center
at 3.3V.
DD
=45mA). For ease of imple-
out
Issue Date: 01/02/02
Advertisement
Chapters
Table of Contents
