Catalog
Super I/O Controller
Key Features
• * 8042 Keyboard Controller
• * 128 QFP Packaging
• * Customer-programmable RAM
• * 60 GPIO
• * µController Fan Control Engine
• * PECI 2.0, x2 CPU, x4 domain, C3/C4
• * PCH Temp Monitoring
• * AMD SB-TSI
• * 2 SMBus Interfaces (master or slave)
• * IEEE 1284 EPP, ECP, and IBM PC/AT Compatible Parallel Port
• * Two 16C550A UART-compatible serial ports
• * 100% compatible with IBM PC/XT and PC/AT architecture
• * 4 PWM Outputs
• * 4 fan tachometer inputs
• * Programmable automatic fan control support
• * Bi-directional PROCHOT# pin support
Description
AI
The SCH5636 is a 3.3V
PC 2001 compliant Super I/O controller with an LPC interface. All legacy
drivers used for Super I/O components are supported, making this interface
transparent to the supporting software. The LPC bus also supports power
management, such as wake-up and sleep modes.
This device provides
temperature monitoring with auto fan control and can monitor up to three
external diodes, one internal ambient temperature sensor or retrieving
temperatures from external processors that implement the PECI (Platform
Environmental Control Interface).
Glue Logic includes
various power management logic including, generation of RSMRST# and Power
OK signal generation. A floppy disk controller with SMSC's true CMOS 765B core
and enhanced digital data separator provides 100% compatibility with IBM PC/XT
and PC/AT architectures, and is software- and register- compatible with
SMSC's proprietary 82077AA core.
**Family parts**SCH5636-NS
