IT8888F - ITE IT8888F PCI to ISA Bridge Chipset Simple Type: Chipset
- Part Number:
- IT8888F
- Model Number:
- IT8888F
- Make:
- ITE
- Lead Time:
- Available
- Qty In Stock:
- Available
ITE IT8888F PCI to ISA Bridge Chipset Simple Type: Chipset
The IT8888F is a PCI to ISA bridge single function device. The IT8888F serves as a bridge between the PCI bus and ISA bus. The IT8888F’s 32-bit PCI bus interface is compliant with PCI Specification V2.1 and supports both PCI Bus Master & Slave. The PCI interface supports both programmable positive and full subtractive decoding schemes. The IT8888F also integrates two enhanced DMA Slave controllers for achieving PCI DMA cycles: PC/PCI DMA Slave Controller & Distributed DMA Slave Controllers. The device also contains one SM bus (single master mode) which can be connected to a Serial E2 PROM for automatic power-on configuration. ITE’s proprietary (USA & Taiwan patent pending) power-on auto-configuration through SM bus can provide customer with maximum design flexibility. The IT8888F also implements the optional fast positive decode of F, E, D, C memory segments. This special feature can provide a direct connection to an FALSH boot ROM. The NOGO function which is also implemented in the IT8888F for enabling or disabling subtractive decode of PCI interface could be a software controlled output pin from other host controlled devices. The Serial IRQ is also implemented in the device for sending and receiving ISA IRQs & IOCHCK#. The device includes an ISA interface which supports full ISA compatible functions. The IT8888F is available in 160-pin PQFP package.
For Resellers and High Volume Orders:
Please request a quote to obtain preferred pricing.
Features
- None Available
Specifications
- Distributed DMA Controller: Comply with Distributed DMA R6.0. Supports 7 DDMA channels. Optional DDMA-Concurrent PCI bus.
- ISA Interface: Supports full ISA compatible functions. Supports ISA at ¼ of PCI frequency. ISA Bus Master supported. Supports 4 ISA slots.
- Optional FLASH ROM Interface: Supports up to 1 Mbytes ROM size. Positively fast decodes F-segments by poweron strapping.
- PC/PCI DMA Controller: Comply with Intel Mobile PC/PCI DMA R2.2. Supports PPDREQ# and PPDGNT#. Provides software transparent capability.
- PCI Interface: PCI Specification V. 2.1 compliant. Supports 32-bit PCI bus & up to 33 MHz PCI bus frequency. Supports PERR# & SERR# Error Reporting. Supports Delayed Transaction. Optional CLKRUN# interface support.
- Power-on Serial Bus Configuration: Power-on auto configuration through SM bus. Patent pending on auto-start and auto-stop scheme.
- Programmable PCI Address Decoders: Supports either programmable positive. decode or full subtractive decode of PCI cycles. Provides 6 positively decoded I/O blocks & 4 positively decoded memory blocks. Optional support ROMCS# fast positive decoder.
- Serial IRQ: Comply with Serialized IRQ Support for PCI system R6.0. Supports both continuous and quite modes. Auto detect Start Frame width and slot number. Encodes all ISA IRQs and IOCHCK#.
- SM Bus: Comply with System Management Bus Specification R. 1.0. Supports single master mode. Interface to Serial E2PROM.
Applications
- None Available
Aliases
- None Available
