FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 120

• Manufacturer Part Number: FDC37B77X
• Description: ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
• Manufacturer: SMSC Corporation

The FDC37B77x is a Super I/O and Universal
Keyboard
intelligent keyboard management in desktop
computer applications. The Super I/O supports
a Floppy Disk Controller, two 16550 type serial
ports one ECP/EPP Parallel Port.
KIRQ is the Keyboard IRQ
MIRQ is the Mouse IRQ
Port 21 is used to create a GATEA20 signal from the FDC37B77x.
8042A
Controller
TST0
TST1
8042 KEYBOARD CONTROLLER DESCRIPTION
that
P27
P10
P26
P23
P22
P11
Keyboard and Mouse Interface
is
designed
for
120
LS05
The Universal Keyboard Controller uses an
8042 microcontroller CPU core.
concentrates on the FDC37B77x enhancements
to the 8042. For general information about the
8042, refer to the "Hardware Description of the
8042" in the 8-Bit Embedded Controller Hand-
book.
This section
KDAT
KCLK
MCLK
MDAT