Apple 250 User Manual
Developer Note
PowerBook Duo 250
Developer Press
© Apple Computer, Inc. 2000
Apple Computer, Inc.
© 2000, Apple Computer, Inc.
All rights reserved.
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intended to assist application
developers to develop applications only
for Apple Macintosh computers.
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Contents
Figures and Tables v
Preface
Chapter 1
Chapter 2
About This Note
Conventions Used in This Note vii
Other Reference Material viii
For More Information ix
vii
Introduction to the PowerBook Duo 250 Computer
PowerBook Duo 250 Computer Features 2
Hardware Modifications
Active-Matrix Display Features 6
Inverter/Speaker Board 7
200 MB Hard Disk Drive 7
Environmental Specifications 8
Housing Requirements 8
Hard Disk Interface 11
Interface Requirements 11
SCSI Connectors 11
Terminator 13
Power Requirements 14
5
1
Chapter 3
Software Modifications
PowerBook Duo 250 Control Panels 16
PowerBook Setup Panel 16
PowerBook Control Panel 17
Custom and Easy Controls for Battery Conservation 17
Power Conservation 18
Index
19
15
iii
1
5
15
Figures and Tables
Chapter 1
Chapter 2
Chapter 3
Introduction to the PowerBook Duo 250 Computer
Figure 1-1
Simplified block diagram of the PowerBook Duo 250
computer system 3
Hardware Modifications
Figure 2-1
Figure 2-2
Figure 2-3
Table 2-1
Table 2-2
Table 2-3
Table 2-4
Table 2-5
Table 2-6
Hard disk drive housing 9
Bracket for the hard disk drive 10
200 MB hard drive SCSI connector 11
Active-matrix display features 6
Environmental specifications for 200 MB hard disk drive 8
Hard disk SCSI connector signal assignments: SCSI
and power 12
Hard disk SCSI connector signal assignments: SCSI ID 13
SCSI ID encoding 13
Power requirements for the 200 MB hard disk drive 14
Software Modifications
Figure 3-1
Figure 3-2
PowerBook Setup panel 17
PowerBook Control Panel 18
v
▲
PREFACE
About This Note
This note is a supplement to the Macintosh Developer Notes, Number 2,
Macintosh Duo System, APDA publication number R0457LL/A. It describes the
design features of the PowerBook Duo 250 computer, which is basically a
PowerBook Duo computer with an active-matrix display and expanded hard
disk capabilities.
This note provides the hardware or software developer with the additional
information needed to design hardware and software elements for the
PowerBook Duo 250 computer. This publication assumes you are familiar with
the functionality and programming requirements for Apple Macintosh
computers. It consists of three chapters
■
Chapter 1, “Introduction to the PowerBook Duo 250 Computer”
Chapter 2, “Hardware Modifications”
■
■
Chapter 3, “Software Modifications”
It also contains an index.
Conventions Used in This Note 0
This developer note uses the following conventions:
Note
A note like this contains information that is interesting but not essential
for an understanding of the text.
IMPORTANT
A note like this contains information that is essential to an
understanding of the text and of the equipment or software described.
WARNING
A note like this directs your attention to something that could cause
injury to staff, damage to equipment, or loss of data.
A slash in front of a signal name (/RESET) indicates an active low signal.
◆
▲
▲
vii
µ
PREFACE
The following abbreviations are used in the book:
AM active matrix
DRAM dynamic random access memory
FSTN film super twist nematic
I/O input/output
K 1024
LCD liquid crystal display
mA milliampere
MB megabyte
Mbit megabit
MHz megaherz
mm millimeter
ms millisecond
s microsecond
ns nanosecond
RAM random-access memory
RMS root mean square
SCC serial communication controller
SCSI small computer system interface
VRAM video RAM
V volts
When unusual abbreviations appear in this developer note, the corresponding
terms are also spelled out. Standard units of measure and other widely used
abbreviations are not spelled out.
A distinction is made between boards and cards. Boards are a permanent part
of the computer or expansion device. Cards may be inserted into the system
and can be added or exchanged.
Other Reference Material 0
Related documentation includes:
Macintosh Developer Notes, Number 2, Macintosh Duo System, APDA
■
publication number R0457LL/A
■
Guide to the Macintosh Family Hardware, second edition
■
Designing Cards and Drivers for the Macintosh Family, third edition
Inside Macintosh, Volumes I through VI
■
Macintosh Classic II, Macintosh PowerBook Family, and Macintosh Quadra
■
Family Developer Notes, APDA publication number R0I43LL/A.
viii
PREFACE
For More Information 0
APDA is Apple’s worldwide source for over three hundred development
tools, technical resources, training products, and information for anyone
interested in developing applications on Apple platforms. Customers receive
the quarterly APDA Tools Catalog featuring all current versions of Apple
development tools and the most popular third-party development tools.
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To order products or to request a complimentary copy of the APDA Tools
Catalog , contact
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ix
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