Architecture

The architecture of the MacBook Pro is based on the Intel Penryn microprocessor and two integrated circuits (ICs): the North Bridge memory controller and the South Bridge I/O controller, connected to each other by a Direct Media Interface (DMI) bus. The North Bridge IC provides the bridging functionality among the processor, the memory system, the DMI bus, and the 16-lane PCI Express bus to the graphics controller. The South Bridge IC supports these components:

  • Ultra ATA/100 bus for the optical drive (running at UATA/66)
  • A 1.5 Gbps Serial ATA (SATA) bus for the hard disk drive
  • 1-lane PCI Express link for the AirPort Extreme module, 1 for Ethernet, and 1 for ExpressCard
  • SPI bus, direct memory access bus to the boot ROM
  • USB 2.0 controller, which in turn supports the Bluetooth module, IR receiver, built-in iSight camera, built-in trackpad and keyboard, ExpressCard 34 mm slot, and 2 USB 2.0 ports
  • Channel to the audio subsystem
  • 33MHz, 32-bit internal PCI bus to the FireWire 400 (1394a) and FireWire 800 (1394b)
  • Direct Media Interface (DMI) bus

Figure 1 provides a simplified block diagram of the North Bridge and South Bridge ICs and the buses that connect them together.

Figure 1 provides a simplified block diagram of the North Bridge and South Bridge ICs and the buses that connect them together.

Isight Camera Macpro
Apple Technologies Explained

Apple Technologies Explained

What is So Great About Apples Design Concepts? There is always a reason why consumers are drawn to a particular brand of product. Apple has the record for drawing people in, and not just Americans, why? Ease of use, thats why.

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