Apple MA607LL - Mac Mini - 512 MB RAM Informations techniques

Mac mini DeveloperNote(Legacy)

NMI without Programmer’s SwitchCurrent Macintosh computers do not have a programmer’s switch, which allowed users to generate anon-maskable interrupt

Note: The debug flags bit will be cleared if you use System Preferences to change the startup disk.It may also be cleared if you perform an installat

This chapter describes the architecture of the Mac mini. It includes information about the major componentson the main logic board: the microprocessor

Block DiagramFigure 2-1 (page 13) is a simplified block diagram of the main logic board. The diagram shows the main ICsand the buses that connect them

The MaxBus connects the PowerPC G4 microprocessor to the Intrepid ASIC. The MaxBus has 64 data lines, 32address lines, and a bus clock speed of 167 MH

In addition to the buses listed in Table 2-1 (page 15), the Intrepid ASIC also has separate interfaces to thephysical layer (PHY) ICs for Ethernet and

The interface between the graphics IC and the rest of the system is a 4x AGP (accelerated graphics port) buson the Intrepid IC. To give the graphics I

Modem SupportThe internal modem is connected to an internal I2S interface. The modem provides digital call progress signalsto the sound circuitry. The

AirPort Extreme Wireless SupportApple’s internal wireless LAN module, the 54 Mbps AirPort Extreme Card, is available as a build-to-order optionor as a

This chapter describes both the built-in I/O devices and the ports for connecting external I/O devices. Each ofthe following sections describes an I/O

ContentsIntroduction to Mac mini Developer Note 6Organization of This Document 6Overview to the Mac mini 7Features 7Enclosure 9System Software 9Comput

DescriptionSignal namePinGroundGND4The Mac mini provides 5 volt power to the USB ports. The maximum current available is 500 mA on each port.The exter

USB ControllerThe Mac mini uses Open Host Controller Interface (OHCI) controller for USB communication. Some early USBdevices (most notably keyboards)

●Additional services for user-space and kernel access to all FireWire resources.For information on writing FireWire drivers or applications, download

When the computer is on, the power pin provides a maximum voltage of 18.5 V (no load) and up to 8 W totalpower.The FireWire PHY is powered as long as

Ethernet PortThe Mac mini has a built-in 10/100 Mbps Ethernet port. The user can connect it to either a 10Base-T or a100Base-T hub; the port will auto

AirPort Extreme CardThe Mac mini supports the AirPort Extreme Card, an internal wireless LAN module connected to the PCI bus.The AirPort Extreme Card

As an additional data security measure, VPN can be used in conjunction with the AirPort Extreme data security.AirPort Extreme HardwareThe AirPort Extr

●hardcopy cable replacement profiler (HCRP) — describes how to send rendered data over a Bluetooth linkto a device, such as a printer. Although other

Writing speedReading speedMedia type–24x (CAV)CD-ROMDigital audio signals from the Combo drive can be played through the sound outputs under the contr

DVI PortThe Mac mini has a DVI-I (DVI with analog) port. Figure 3-3 (page 29) shows the contact configuration for theDVI connector. Table 3-6 (page 29

USB Connectors 19USB Features 20FireWire 400 Port 21FireWire Device Programming 21FireWire 400 Connector 22Target Disk Mode 23Ethernet Port 24Internal

The graphics data sent to the digital monitor use transition minimized differential signaling (TMDS). TMDSuses an encoding algorithm to convert bytes

S-video output connectorPin numberAnalog GND2Video Y (luminance)3Video C (chroma)4composite video5Unused6Unused7The Mac mini provides video output at

The sound system’s input, output, and CODEC are described in the following pages.Sound InputThe sound system accepts inputs from the following sources

Headphone and Line-out JackThe headphone/line-out jack is located on the I/O panel on the rear of the computer.The headphone/line-out jack has the fol

This chapter describes the RAM expansion modules supported by Mac mini.RAM ExpansionThe Mac mini has one RAM expansion slot that accepts standard DDR3

Electrical Design of RAM DIMMsThe electrical characteristics of the RAM DIMM are given in section 4.5.6 of the JEDEC Standard 21-C. Thespecification i

For more information about the technologies mentioned in this developer note, consult the following references.For information about older models of M

Velocity Engine (AltiVec)Velocity Engine is Apple’s name for the AltiVec vector processor in the PowerPC G4 microprocessor. Appleprovides support for

http://developer.apple.com/technotes/tn/tn1062.htmlTN1044: Open Firmware, Part III, available athttp://developer.apple.com/technotes/tn/tn1044.htmlOth

ATA Manager 4.0 supports driver software for internal IDE drives and includes DMA support. For the latestinformation about ATA Manager 4.0, see Techni

Ethernet 39FireWire Interface 39Digital Visual Interface 40Wireless Networks 40Bluetooth 40Abbreviations 41Index 46Retired Document | 2005-04-05 |

The IEEE 1394 standard is available from the IEEE. Ordering information can be found on the World Wide Webathttp://shop.ieee.org/storeAdditional usefu

Standard units of measure used in this developer note include:megabytesMBamperesAmegabits per secondMbpscentimeterscmmegabitsMbitdecibelsdBmegahertzMH

column address strobeCASconstant angular velocityCAVcompact discCDcompact disc read-only memoryCD-ROMconstant linear velocityCLVcentral processing uni

International Electrotechnical CommissionIECinter IC control busIIC (I2C)inter IC sound busIIS (I2S)input and outputI/Omemory controller and I/O devic

read-only memoryROMSmall Computer System InterfaceSCSIsynchronous dynamic RAMSDRAMsynchronous graphics RAMSGRAMsignal to noise ratioSNRSerial Presence

Apple Inc.Copyright © 2005 Apple Computer, Inc.All rights reserved.No part of this publication may be reproduced,stored in a retrieval system, or tran

Numerals3D graphics 36AAGP bus 16AirPort Admin Utility 26AirPort Extreme 18, 25–26AirPort Extreme Application 26AirPort Extreme Base Station 25AirPort

FireWire 400 ports 21–23FireWire interface 39FireWire portbooting from 21FireWire portsTarget Disk mode 23GG4. See PowerPC G4 microprocessorgraphics a

TTarget Disk Mode 23TV display adapter 30UUSB controller IC 18USB features 20–21USB interface 39USB ports 19–21booting from 20connectors 19controller

Figures and TablesOverview to the Mac mini 7Figure 1-1 Mac mini Enclosure 9Architecture 12Figure 2-1 Block diagram 13Table 2-1 Bus speeds 15Devices an

Important: This document may not represent best practices for current development. Links to downloadsand other resources may no longer be valid.This

This chapter lists the features of the new Mac mini and provides information about a few software issues ofinterest to developers. The Mac mini does n

●FireWire 400 ports: The Mac mini has one IEEE-1394a FireWire 400 port supporting transfer rates of 100,200, and 400 Mbps. For more information, see

EnclosureFigure 1-1 (page 9) shows the front and rear views of the Mac mini.Figure 1-1 Mac mini EnclosurePowerbuttonSecurityslotPowerindicatorlightSlo