w83627thg Winbond Electronics Corp America, w83627thg Datasheet - Page 8

• Manufacturer Part Number: w83627thg
• Description: Winbond Lpc I/o
• Manufacturer: Winbond Electronics Corp America

W83627THF/W83627THG
1. GENERAL DESCRIPTION
W83627THF is a Winbond LPC I/O product. It integrates the following major peripheral functions in a
chip: the disk driver adapter (FDC), Serial port (UART), Parallel port (SPP/EPP/ECP), Keyboard
controller (KBC), SIR, Game port, MIDI port, Hardware Monitor, ACPI, On Now Wake-Up features.
The disk drive adapter functions of W83627THF include a floppy disk drive controller compatible with
the industry standard 82077/765, data separator, write pre-compensation circuit, decode logic, data
rate selection, clock generator, drive interface control logic, and interrupt and DMA logic. The wide
range of functions integrated onto the W83627THF greatly reduces the number of components
required for interfacing with floppy disk drives. The W83627THF supports four 360K, 720K, 1.2M,
1.44M, or 2.88M disk drives and data transfer rates of 250 Kb/s, 300 Kb/s, 500 Kb/s, 1 Mb/s, and 2
Mb/s.
The W83627THF provides two high-speed serial communication ports (UARTs), one of which
supports serial Infrared communication.
Each UART includes a 16-byte send/receive FIFO, a
programmable baud rate generator, complete modem control capability, and a processor interrupts
system. Both UARTs provide legacy speed with baud rate up to 115.2k bps and also advanced speed
with baud rates of 230k, 460k, or 921k bps, which support higher speed modems. In addition, the
W83627THF provides IR functions: IrDA 1.0 (SIR for 1.152K bps)
The W83627THF supports one PC-compatible printer port (SPP), Bi-directional Printer port (BPP) and
also Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP). Through the printer port
interface pins, also available are: Extension FDD Mode and Extension 2FDD Mode allowing one or
two external floppy disk drives to be connected.
The configuration registers support mode selection, function enable/disable, and power down function
selection. Furthermore, the configurable PnP features are compatible with the plug-and-play feature
TM
demand of Windows 95/98
, which makes system resource allocation more efficient than ever.
The W83627THF provides functions that complies with ACPI (Advanced Configuration and Power
Interface), which includes support of legacy and ACPI power management through PME# or PSOUT#
function pins. For OnNow keyboard Wake-Up, OnNow mouse Wake-Up. The W83627THF also
has auto power management to reduce the power consumption.
The keyboard controller is based on 8042 compatible instruction set with a 2K Byte programmable
TM
ROM and a 256-Byte RAM bank. Keyboard BIOS firmware are available with optional AMIKEY
2,
-
TM
Phoenix MultiKey/42
, or customer code.
The W83627THF provides a set of flexible I/O control functions to the system designer through a set
of General Purpose I/O ports. These GPIO ports may serve as simple I/O or may be individually
configured to provide a predefined alternate function.
Publication Release Date: September 26, 2006
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Revision 1.2