| Description |
W83977ATG-AW integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, configurable plug-and-play registers for the whole chip, ACPI, 8042 keyboard controller with PS/2 mouse support, 23 general purpose I/O ports, full 16-bit address decoding, OnNow keyboard wake-up, OnNow mouse wake-up, and OnNow CIR wake-up. In addition, W83977ATG-AW provides IR functions: IrDA 1.1 (MIR for 1.152M bps or FIR for 4M bps) and TV remote IR (Consumer IR, supporting NEC, RC-5, extended RC-5, and RECS-80 protocols).<'xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" /'>
The disk drive adapter functions of W83977ATG-AW 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. W83977ATG-AW 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 interrupt system. W83977ATG-AW provides independent 3rd UART (32-byte FIFO) dedicated for the IR function.
W83977ATG-AW supports one PC-compatible printer port (SPP), Bi-directional Printer port (BPP) and also Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP). Extension FDD Mode and Extension 2FDD Mode are also available through the printer port interface pins. W83977ATG-AW provides functions that comply with ACPI. W83977ATG-AW also has auto power management to reduce power consumption. The keyboard controller is based on 8042 compatible instruction set with a 2K Byte programmable ROM and a 256-Byte RAM bank. Keyboard BIOS firmware is available with optional AMIKEYTM-2, <'xml:namespace prefix = "st1" ns = "urn:schemas-microsoft-com:office:smarttags" /'>Phoenix MultiKey/42TM, or customer code. W83977ATG-AW provides a set of flexible I/O control functions to the system designer through a set of General Purpose I/O ports. W83977ATG-AW is made to fully comply with Microsoft PC97 Hardware Design Guide. |
News & Events
