Description

The W83667HG is an evolving product from Winbond's most popular I/O family. It features a whole new interface, namely LPC (Low Pin Count) interface, which provides an economical implementation of I/O's interface with lower pin count while maintaining equivalent performance as its ISA interface counterpart. Approximately 40 pin counts are saved in LPC I/O comparing to ISA implementation.

Specifications and features

- Meet LPC Spec. 1.01
- Support LDRQ#(LPC DMA), SERIRQ (serial IRQ)
- Include all the features of Winbond I/O W83877TF
- Integrate Hardware Monitor functions
- Compliant with Microsoft PC98/PC99 Hardware Design Guide
- Support DPM (Device Power Management), ACPI
- Programmable configuration settings
- Single 24 or 48 MHz clock input
- Compatible with IBM PC AT disk drive systems
- Variable write pre-compensation with track selectable capability
- Support vertical recording format
- DMA enable logic
- 16-byte data FIFOs
- Support floppy disk drives and tape drives
- Detects all overrun and underrun conditions
- Built-in address mark detection circuit to simplify the read electronics
- FDD anti-virus functions with software write protect and FDD write enable signal (write data signal was forced to be inactive)
- Support up to four 3.5-inch or 5.25-inch floppy disk drives
- Completely compatible with industry standard 82077
- 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate
- Support 3-mode FDD, and its Win95/98 driver
- Two high-speed 16550 compatible UARTs with 16-byte send/receive FIFOs
- MIDI compatible
- Fully programmable serial-interface characteristics: 5, 6, 7 or 8-bit characters; Even, odd or no parity bit generation/detection; 1, 1.5 or 2 stop bits generation
- Internal diagnostic capabilities: Loop-back controls for communications link fault isolation; Break, parity, overrun, framing error simulation
- Programmable baud generator allows division of 1.8461 MHz and 24 MHz by 1 to (216-1)
- Maximum baud rate up to 921k bpsfor 14.769 MHz and 1.5M bps for 24 MHz
- Support IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps
- Support SHARP ASK-IR protocol with maximum baud rate up to 57,600 bps
- Support Consumer IR with Wake-Up function
- Compatible with IBM parallel port
- Support PS/2 compatible bi-directional parallel port
- Support Enhanced Parallel Port (EPP) - Compatible with IEEE 1284 specification
- Support Extended Capabilities Port (ECP) - Compatible with IEEE 1284 specification
- Extension FDD mode supports disk drive B; and Extension 2FDD mode supports disk drives A and B through parallel port
- Enhanced printer port back-drive current protection
- Support two separate Joysticks
- Support every Joystick two axes (X,Y) and two buttons (S1,S2) controllers
- The baud rate of MIDI port is 31.25 Kbaud
- 16-byte input FIFO and 16-byte output FIFO

Application Scenarios

The W83667HG can be used in various electronic applications such as interfaces, specialized systems, computer hardware, and more. Its wide range of features and compatibility make it suitable for different scenarios that require I/O interface with reduced pin count.

Comparison

- Economical implementation of I/O's interface with lower pin count
- Equivalent performance as ISA interface counterpart
- Integrated Hardware Monitor functions
- Compliant with Microsoft PC98/PC99 Hardware Design Guide
- Support for DPM (Device Power Management) and ACPI
- Programmable configuration settings
- Supports various disk drive systems and formats
- High-speed UARTs with send/receive FIFOs
- Support for infrared protocols
- Compatible with parallel ports and game ports
- MIDI compatible
- Versatile parallel port capabilities
- Support for separate Joysticks and MIDI devices

- Limited baud rates for infrared protocols
- Requires compatible chipsets and systems for LPC interface support