The F81866A is the featured IO chip for Industrial PC system. Equipped with one IEEE 1284 parallel port, 6 UART ports with Multi drop function (9-bit protocol), SIR, ACPI management function and FDC. Each UART provides 16/32/64/128 bytes FIFO. The UART supports legacy speeds up to 115.2K bps as well as even higher baud rates of 230K, 460K, or 921K bps to support higher speed modems. The F81866A supports the enhanced parallel port (EPP) and the extended capabilities port (ECP). The F81866A supports keyboard and mouse interface which is 8042-based keyboard controller. The F81866A integrated with hardware monitor, 7 sets of voltage sensor, 3 sets of creative auto-controlling smart fans and 2 temperature sensor pins for the accurate dual current type temperature measurement for CPU thermal diode or external transistors 2N3906 and one local temperature.
The F81866A provides flexible features for multi-directional application. For instance, supports 72 GPIO pins, IRQ sharing function designed in UART feature for particular usage and accurate current mode H/W monitor will be worth in measurement of temperature. Others, the F81866A supports newest Intel PECI 3.0 interfaces for new generational CPU temperature usage, INTEL IBX PEAK, I2C and AMD TSI for temperature reading.
In order to save the current consumption when the system is in the soft off state which is so called power saving function. The power saving function supports the system boot-on not only by pressing the power button but also by the wake-up events via GPIO0x, GPIO1x, RI1#, and RI2#. When the system enters the S3/S4/S5 state, F81866A can cut off the VSB power rail which supplies power source to the devices like the LAN chip, the chipset, the SIO, the audio codec, DRAM, and etc. The PC system can be emulated to G3-like state when the system enters S3/S4/S5 states. At the G3-like state, the F81866A consumes 5VSB power rail only. The integrated two control pins are utilized to turn on or off VSB power rail in the G3-like status. The turned on VSB rail is supplied to a wake up device to fulfill a low power consumption system which supports a wake up function.
These features as above description will help you more and improve the product value. The F81866A is in the package of 128-LQFP. (14mm*14mm)
- FEATURES
- PACKAGE
- ATTACHMENTS
- General Functions
- Comply with LPC 1.1
- Support ACPI 3.0
- Support WDT Reset Function
- Support WDT wake up while ERP function is enabled
- Provide 4 sets of GPIO (GPIO0x/1x/5x/8x) SMI event via PME# or SIRQ
- Provide different SIRQ channels for GPIO0x/1x/5x/8x
- Provide one FDC, KBC and Parallel Port
- Provide 6 fully functional UART and 1 SIR
- H/W monitor functions
- 72 GPIO Pins for flexible application
- Support LED blinking function
- Provide Power Saving Function (Comply ERP lot 6.0)
- Support Intel Deep Sleep Well (DSW) Timing Sequence
- Provide wake-up events via power button, GPIO0x, GPIO1x, RI1#, and RI2#
- Provide ATX emulates AT function
- 14.318/24/48 MHz clock input
- Packaged in 128-LQFP
- 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 under run conditions
- Built-in address mark detection circuit to simplify the read electronics
- Completely compatible with industry standard 82077
- 360K/720K/1.2M/1.44M/2.88M format; 250K, 300K, 500K, 1M, 2M bps data transfer rate
- Parallel Port
- One PS/2 compatible bi-directional parallel port
- Support Enhanced Parallel Port (EPP) Compatible with IEEE 1284
- Support Extended Capabilities Port (ECP) Compatible with IEEE 1284
- Enhanced printer port back-drive current protection
- Hardware Monitor Functions
- 2 dual current type (±3ºC) thermal inputs for CPU thermal diode and 2N3906 transistors
- Provide one local temperature
- Support temperature monitoring via thermistor
- Temperature range: -60ºC~127ºC
- 8 sets voltage monitoring (4 external and 4 internal powers)
- High limit signal (PME#) for Vcore
- 3 fan speed monitoring inputs
- 3 fan speed PWM/DC control outputs
- FANCTL 1~3 provides 4 frequency (23.5/11.75/5.875KHz, & 200Hz) select via the registers
- OVT# hardware signals output
- Case intrusion detection circuit
- Support PECI 3.0
- Support 4 selectable PECI address 30h~33h (index 0Bh)
- I2C Interface
- Support slave interface to report the hardware monitor data
- Support master interface to get the thermal data via PCH & MXM module
- Support AMD TSI Interface
- Keyboard Controller
- compatibility with the 8042
- Support PS/2 mouse
- Hardware Gate A20 and Hardware Keyboard Reset
- Support KB, Mouse wake up and swap function
- GPIO Function
- Total 72 pins GPIO
- Interrupt status (wake up) support via GPIO0x and GPIO1x
- Support different SIRQ channels via GPIO0x, GPIO1x, GPIO5x and GPIO8x
- All GPIO supports digit IO for Input/Output control, Output data control, input status.
- Support High/Low Level/Pulse, Open Drain/Push Pull function selection
- All GPIO could be accessed via 3 ways: configuration register port (4E/2E), index/data port and directly access to GPIO
only (digital I/O). Please refer to the GPIO function description for detail.
- Watch Dog Timer
- Time resolution minute/second
- Maximum 256 minutes or 256 seconds
- Output signal via WDTRST#/PWOK
- WDT could also wake up PME#, PSWOUT#
- Power Saving Function
- G3-like Timing Control
- Comply With ERP Lot 6.0
- Built in Soft Start Function for Two Control Pins with VSB Power Sources Control.
- Event In via GPIO0x, GPIO1x, RI1#, and RI2#
- Support Intel Cougar Point Timing (DSW)
- UART
- Provide 6 fully functional UART
- 6 high-speed 16C550/16C650/16C750/16C850/16C950 compatible UARTs
- Provide auto flow control function
- Baud rate supports 115.2K, max. up to 1.5M
- Support IRQ 3,4,5,6,7,8,9,10,11 sharing
- Provide Multi drop (9-bits) Function for Gaming Machine
- Support IrDA version 1.0 SIR protocol (Multi with UART 6)
- Support Ring-In Wake Up via RI1# and RI2#
- Infrared
- Support IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps (Multi with UART 6)
- Provide ATX Emulates AT Function
- Package
- 128-pin LQFP (14mm * 14mm) green package
Noted: Patented TW207103 TW207104 TW220442 US6788131 B1 TWI235231 TW237183 TWI263778