Block Diagram

A simplified block diagram of the North Bridge, South Bridge, and buses that connect them:

A simplified block diagram of the North Bridge, South Bridge, and buses that connect them:

Schematics Macbook 2011 Pcie

The architecture of the MacBook Air is based on the Intel Core 2 Duo microprocessor and two 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 provides the bridging functionality among the processor, the memory system, and the DMI.

The South Bridge supports these components:

  • Parallel ATA (PATA) bus for the hard drive or the optional solid state drive
  • 1-lane PCI Express link for the AirPort Extreme module
  • SPI bus, direct memory access bus to the boot ROM
  • USB 2.0 controller, which in turn supports the Bluetooth 2.1 + EDR module, built-in iSight camera, built-in trackpad and keyboard, and one external, high-powered USB 2.0 port
  • Channel to the audio subsystem

A DMA controller internal to the South Bridge supports LPC DMA (low pin count direct memory access). The DMA controller has registers that are fixed in the lower 64 KB of I/O space. The DMA controller is configured using registers in the PCI configuration space.

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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