The Chipset Guide

ALI Aladdin V AGP Chipset - 66/100 MHz Front Side Bus

Aladdin V / M1541/ M1543

- Core Logic for Pentium /M1/M2/K5/K6 based Business and Multimedia PCs

Aladdin-V is the fifth generation 586 chipset from AcerLabs. It maintains the best system architecture (2-chip solution) to achieve the best system performance with the lowest system cost (TTL-free). Aladdin-V consists of two BGA chips to give the 586-class system a complete solution with most up-to-date features and architecture for the most engaging multimedia/ multithreading OS and software applications. It utilizes the modern BGA package to improve the AC characterization, resolves system bottleneck and make the system manufacturing easier.

M1541 includes the higher CPU bus frequency (up to 100 MHz) interface for all socket 7 compatible processors, PBSRAM and Memory Cache L2 controller, internal MESI tag bits (16K*2) and Tag RAM (16K*10) to reduce cost and enhance performance, high performance FPM/EDO/SDRAM DRAM controller, PCI 2.1 compliant bus interface, smart deep buffer design for CPU-to-DRAM, CPU-to-PCI, and PCI-to-DRAM to achieve the best system performance, and also the highly efficient PCI fair arbiter. M1541 also provides the most flexible 64 bit memory bus interface for the best DRAM upgradeability and ECC/Parity design to enhance the system reliability.

With the AGP interface design, the dedicated PCI_66 AGP interface can be concurrent with CPU and PCI interface. The deep buffer of the read and write buffer design makes the utilization of memory bandwidth more efficient. The interface supports AGP specification V1.0. Supports up to 128 entries table look aside buffer for Graphic Address Remapping Table (GART). The interface not only supports the AGP 66 MHz PCI protocol, but also the AGP 1X and 2X sideband address function.

With the concurrent bus design, PCI-to-PCI access can run concurrently with CPU-to-L2 and CPU-to-DRAM access, PCI-to-DRAM access can run concurrently with CPU-to-L2 access. M1541 also supports the snoop ahead feature to achieve the PCI master full bandwidth access (133 MBytes). M1541 also provides the enhanced power management features including ACPI support, suspend DRAM refresh, and internal chip power control to support Microsoft On Now technology OS.

M1543 provides the best desktop system solution. M1543 integrates ACPI support, green function, 2-channel dedicated Ultra-33 IDE Master controller, 2-port USB controller, SMBus controller, PS/2 Keyboard/Mouse controller and the Super I/O (Floppy Disk Controller, 2 serial port/1 parallel port) support.

The built-in I/O in M1543 is an advanced Super I/O controller solution to the basic IBM PC, XT, AT and notebook peripherals. It incorporates two full function universal asynchronous receiver/ transmitters (UARTs), a flexible high performance internal data separator with send/receive 16 Byte FIFOs. It is suitable for notebook computers since it has Serial Infra Red for wireless communications with other devices. It can swap your drives A & B. It features basic functions such as standard mode, enhanced mode, high speed mode. It supports SPP, PS/2, EPP and ECP parallel port. It also has a programmable baud rate generator. It has high performance power management for FDC, UART and parallel port.

Furthermore, Aladdin V is designed to meet the requirements of all socket 7 process-ors including business, multimedia and high performance CPU file servers.