IT8893E数据手册ITE中文资料规格书

描述 Description

IT8893E is a single-function PCI Express to PCI bridge, which is compliant with the PCI Express Base Specification Revision 1.1, PCI Local Bus Specification Revision 3.0 and PCI Express to PCI/PCI-X Bridge Specification Revision 1.0. The PCI Express interface supports a x1 lane configuration, and enables the bridge to provide high-performance operation of the data transfer rate up to 250MB/s. The PCI bus interface supports 32-bit and can operate at up to 66 MHz.

特性 Features

• PCI Express

• Compliant with PCI Express Base Specification Revision 1.1
• Compliant with PCI Express to PCI/PCI-X Bridge Specification Revision

PCI

• Compliant with PCI Local Bus Specification Revision 3.0
• Supports PCI 32-bit, 33/66 MHz, 3.3V, 5V tolerant
• Supports 2 external REQ/GNT pairs for internal arbiter
• Supports up to six queues for memory read cycles
• Supports up to 24 outstanding memory read cycles

I/O Port 80

• Supports I/O port 80 debugging on PCI side
• Dual 7-segment display

Legacy Mode

• Supports PCI-to-PCI bridge with subtractive decode for legacy devices
• Built-in Regulator
• Two on-chip 3.3V to 1.8V regulators
• Supports power-on-reset
• 128-pin LQFP (14mm x 14mm) package
• RoHS Compliant ( 100% Green available )