The following is a data transfer rate comparison table for different IDE
operating modes
:
1.11 Keyboard, Mouse and USB Interface
PS/2 keyboard, PS/2 mouse, and USB connectors are located on the
back panel of the P6F94 mainboard. The 5V line to the PS/2
Keyboard and PS/2 Mouse connectors are protected with a
PolySwitch circuit that acts like a rehealing fuse which will re-
establishing the connection after an over-current condition is
removed. While this device eliminates the possibility of replacing
the fuse, you will still need to turn off the system power before
connecting or disconnecting a keyboard or a mouse.
The P6F94 mainboard has a dual USB connector to support two
USB ports. The USB is a serial bus interface standard that is
designed to bring the “Plug and Play” concept to the outside of the
computer system chassis. The bus allows devices to be attached,
configured, used and detached while the host system is in operation.
The USB will allow as many as 63 devices to be daisy chained in
any combination per port. With up to 12Mbits/sec transfer rate, the
USB is suitable for devices such as keyboard, mouse, digital
joystick, game pad, fax/modem, scanner, printer, ISDN and
telephony device.
Operating Mode
Maximum Data Transfer Rate
PIO Mode 3
11.1 MB/Second
PIO Mode 4
16.6 MB/Second
DMA Mode 1
13.3 MB/Second
DMA Mode 2
16.6 MB/Second
Ultra DMA/33
33.2MB/Second
14 P6F94 User’s Manual
Chapter 1: Introduction
