Winbond I/o

The W83977EF CTF is an evolving product from Winbond's most popular I/O chip W83877F --- which integrates the disk drive adapter, serial port (UART), IrDA 1.0 SIR, parallel port, and configurable plug-and-play Registers for the whole chip --- plus additional powerful features: ACPI, 8042 keyboard controller with PS/2 mouse support, 14 general purpose I/O ports, full 16-bit address decoding, OnNow keyboard Wake-Up, OnNow mouse Wake-Up and OnNow CIR W83977CTF only) Wake-Up. The disk drive adapter functions of W83977EF CTF 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 W83977EF CTF greatly reduces the number of components required for interfacing with floppy disk drives. The W83977EF CTF 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 W83977EF CTF 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. 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. The W83977EF CTF 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. By Winbond Electronics Corp America
W83977CTF 's PackagesW83977CTF 's pdf datasheet

W83977CTF Pinout, Pinouts
W83977CTF pinout,Pin out
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