S5920Q

Product Summary

The AMCC S5920Q was developed to provide the designer with a single multi-function device offering a flexible and easy means to connect applications to the PCI Local Bus. Designers connecting to the PCI Local Bus through the S5920Q eliminate the necessity to understand complex PCI Bus timing requirements and the time consuming task of assuring PCI specification compliance. The S5920Q design incorporates years of design experience and system knowledge achieved through the popular S5933 PCI Matchmaker device. The S5920Q converts complex PCI bus signals into an easy-to-use 8-, 16- or 32-bit user bus referred to as the Add-On Local Bus. The S5920Q Add-On signal pins, shown in Figure 2, provide the designer with a much simpler bus structure in which to interface I/O, memory or data acquisition applications and to port existent ISA-based designs over to the PCI Bus. The bus can be operated either synchronously or asynchronously to the PCI Local Bus with user definable clock speeds from 8 to 40 MHz.

Parametrics

S5920Q absolute maximum ratings: (1)Supply Voltage Range (Vcc Core): -0.3 V to 7.0 V; (2)Input Pin Voltage Range: -0.5 V to VCC + 0.5 V; (3)Storage Temperature Range: -55 to 125 ℃; (4)Operating Ambient Temperature Range: 0 to 70 ℃; (5)Virtual Junction Temperature: 150 ℃; (6)Soldering Lead Temperature: 300 ℃ 10 Seconds.

Features

S5920Q features: (1)PCI 2.2 Compliant Target/Slave Device; (2)Full 132 Mbytes/sec Transfer Rate; (3)PCI Bus Operation DC to 33 Mhz; (4)Add-On Bus 8 MHz to 40 Mhz; (5)Programmable Prefetch and Wait States; (6)8/16/32 Bit Add-On User Bus; (7)Four Definable Pass-Thru Regions; (8)32 Byte Burstable PCI Bus FIFO; (9)Active/Passive Add-On Bus Operation; (10)Mail Box Registers w/Byte Level Status; (11)Direct Mail Box Data Strobe/Interrupt Pin; (12)Mail Box Read/Write Interrupts; (13)Direct PCI & Add-On Interrupt Pins; (14)S5933 PCI Target Mode Replacement; (15)S5933 Software Compatible; (16)Plug-N-Play Compatible; (17)Two Wire Serial Bus nvRAM Support; (18)Optional External BIOS; (19)160 Pin PQFP.

Diagrams