General
Description
IT8661F Plug and Play Super AT I/O chip
is
a user-friendly, low cost peripheral controller.
It provides an ideal solution for Microsoft PC97/98 (PC99 ready)
system requirements. A programmable IRQ sharing function is
supported to comply with Microsoft PC97/98 (PC99 ready)
requirements. No N.V. memory is needed to store resource data
for Plug and Play system applications.
These five logical devices can be individually enabled or
disabled via software configuration registers.
IT8661F utilizes power saving circuitry to reduce power
consumption. Once a logical
device is disabled, its related inputs are gate inhibited, outputs
are tristated, and input clock is disabled. The Parallel Port
includes a specifically designed circuit to reduce damage or
backdrive current when a printer or another parallel port device is
powered-on. In effect, IT8661F is a high-performance,
low-power consumption I/O device.
