Z8930012PSC Datasheet/PDFZ8930012PSC Application Field and Working Principle
Z8930012PSC (Peripheral Subsystem Controller) is an application specific microcontroller designed for use with embedded high speed peripherals, such as Ethernet ports, USB ports, and now even Serial ATA (SATA) ports. The Z8930012PSC adds to the extensive inventory of peripheral control and security features of an embedded system by providing an efficient means to manage multiple peripheral devices.
The primary purpose of the Z8930012PSC is to provide higher performance data throughput by implementing sophisticated peripheral controllers. To accomplish this, the controller is configured with a set of peripheral control registers and various features such as a programmable interrupt controller, address translation unit, and an internal bus.
The control registers are used to configure the peripheral controllers to the appropriate settings according to the particular design of the embedded system. For example, the address translation unit can be set to one of several different translation modes that describe how the controller will map its address G1 to physical MCA4 addresses. The DMA registers guide the DMA units to the correct target address.
The internal bus on the controller helps improve the performance of the system by allowing fast access to peripheral controllers. On the Z8930012PSC, this internal bus transfers data from up to 16 separate peripheral controllers. Additionally, the internal bus can be configured to allow a “split” transaction mode for faster data transfers between peripherals.
The programmable interrupt controller (PIC) in the Z8930012PSC is responsible for directing interrupt requests to their destinations. The PIC is configured by software, which determines the priority and type of interrupt request that the processor should respond to. The PIC also includes a vector table, which is a set of memory locations that the processor must access when an interrupt is issued.
In order to ensure secure communication between the controller and peripherals, the Z8930012PSC implements secure switching protocols. This is especially important when communicating with devices that require sensitive data, such as credit card information. The Z8930012PSC also has several cryptographic algorithms that can be used for data encryption and decryption.
The overall goal of the Z8930012PSC is to provide a more efficient means of managing and using the embedded high-speed peripherals in an embedded system. By utilizing the powerful peripheral control and security features offered by the controller, embedded systems can provide robust and reliable performance.