Features: General
` 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 FDC
` 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
UART
` 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 bps for 14.769 MHz and 1.5M bps for 24 MHz
Infrared
` 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.
Parallel Port
` 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
Game Port
` Support two separate Joysticks
` Support every Joystick two axes (X,Y) and two buttons (S1,S2) controllers
MIDI Port
` The baud rate is 31.25 Kbaud
` 16-byte input FIFO
` 16-byte output FIFO
Flash ROM Interface
` Support up to 4M flash ROM
General Purpose I/O Ports
` 48 programmable general purpose I/O ports
` General purpose I/O ports can serve as simple I/O ports, watch dog timer output, power LED
output, infrared I/O pins, suspend LED output, Beep output
` Functional in power down mode
Hardware Monitor Functions
` Smart fan control system, support "Thermal CruiseTM" and "Speed CruiseTM"
` 2 thermal inputs from optionally remote thermistors or 2N3904 transistors or PentiumTM II/III thermal diode output
` 6 positive voltage inputs (typical for +12V, -12V, +5V, -5V, +3.3V, Vcore)
` 2 intrinsic voltage monitoring (typical for Vbat, +5VSB)
` 2 fan speed monitoring inputs
` 2 fan speed control
` Build in Case open detection circuit
` WATCHDOG comparison of all monitored values
` Programmable hysteresis and setting points for all monitored items
` Over temperature indicate output
` Automatic Power On voltage detection Beep
` Issue SMI#, IRQ, OVT# to activate system protection
` Winbond Hardware DoctorTM Support
` Intel LDCMTM / Acer ADMTM compatible Package
` 128-pin PQFPPinout
DescriptionThe W83697HF is evolving product from Winbond's most popular I/O family. They feature a whole new interface, namely LPC (Low Pin Count) interface, which will be supported in the new generation chip-set.
This interface as its name suggests is to provide an economical implementation of I/O's interface with lower pin count and still maintains equivalent performance as its ISA interface counterpart. Approximately 40 pin counts are saved in LPC I/O comparing to ISA implementation. With this additional freedom, we can implement more devices on a single chip as demonstrated in W83697HF's integration of Game Port and MIDI Port. It is fully transparent in terms of software which means no BIOS or device driver update is needed except chip-specific configuration.
The disk drive adapter functions of W83697HF 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 W83697HF greatly reduces the number of components required for interfacing with floppy disk drives. The W83697HF 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 W83697HF 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. In addition, the W83697HF provides IR functions: IrDA 1.0 (SIR for 1.152K bps) and TV remote IR (Consumer IR, supporting NEC, RC-5, extended RC-5, and RECS- 80 protocols).
The W83697HF 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 demand of Windows 95/98TM, which makes system resource allocation more efficient than ever.
The W83697HF 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. General Purpose Port 1 is designed to be functional even in power down mode (VCC is off).
The W83697HF is made to fully comply with Microsoftã PC98 and PC99 Hardware Design Guide, and meet the requirements of ACPI.
The W83697HF contains a game port and a MIDI port. The game port is designed to support 2 joysticks and can be applied to all standard PC game control devices, They are very important for a entertainment or consumer computer.
W83697HF Data Sheet
