PC I/O & EC / PC Product Line

IT8888F/G PCI to ISA Bridge Chip

The IT8888F/G is a PCI to ISA bridge single function device. The IT8888F/G
serves as a bridge between the PCI bus and ISA bus. The IT8888F/G’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/G also integrates two enhanced DMA Slave controllers for achieving
PCI DMA cycles: PC/PCI DMASlave Controller & Distributed DMA Slave Controllers.
The device also contains one SM bus (single master mode) which can be connected
to a Serial E2PROM 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/G 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/G 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 IT8888G is available in 160-ball TFBGA package.
The IT8888F is available in 160-pin PQFP package.


ITE complies with Taiwan’s Personal Information Protection Act to collect, process, use and protect personal information and will not take the initiative to acquire your personal data. The data you provide will be managed in compliant with the related laws and regulations and in the principle of our company’s information management, which employs the firewall, intrusion detecting system and virus protection mechanism to avoid the illegal hacking and damage from the malicious software.