GENERAL DESCRIPTION
The Winbond mobile keyboard and embedded controller W83L951DG/FG architecture consists of a Turbo-8051 core logic controller and surrounded by various components, 2K+256 bytes of RAM, 64K on-chip FLASH, LPC host interface, 13 general purpose I/O port with 24 external interrupt source, 4 timers, 1 serial port, 2 SMBus interface for master mode, 3 PS/2 port, 2 PWM channels with 8-bits and 2 PWM channels with 16-bits, 2 D-A and 8 A-D converters, 1 Consumer Infrared Communications Receiver, 2 Fan Tachometer , 1 Real Time Clock Generator, and Matrix Interface. The part number with an affix of “G” is the Lead-free package product.
PRODUCT FEATURES
• Core logic
8-bit Turbo 8052 Microprocessor Code based, Speed up to 24MHz
256 bytes Internal RAM
64K bytes Embedded Programmable Flash Memory
2K bytes External SRAM
• Host interface
Software Optional with LPC Interface
Primary Programmable I/O Address Communication Port in LPC Mode
Support SERIRQ in LPC Interface
Support Hardware Fast Gate A20 and KBRST
Support Port 92h
• SMBus
Support 2 SMBus Interface support Master Mode.
• Timers
Support Four Timer Signal with Three Pre-scalars
Timer 1 and 2 Shard the Same Pre-scalar and are Free-Running Only.
Timer X and Y Have Individual Pre-scalar and Support up to Four Control Modes, Free Running,
Pulse Output, Event Counter and Pulse Width Measurement
• PWM
Support Four PWM Channels
PWM 0 and 1 are 8-bits and Programmable Frequency from 62Hz to 7.5 KHz
PWM 2 and 3 are 16-bits and Programmable Frequency from 6Hz to 3MHz
• Fan Tachometer
Support two Fan Tachometer Inputs
• A/D Converter
Firmware Programmable Optional with 10-bite or 8-bit Resolution
Support Eight Channels
• D/A Converter
8-bit Resolution
Support Two Channels
• PS2
Support Three Hardware PS2 Channels
Optional PS2 Clock Inhibit by Hardware or Firmware
• Keyboard Controller
Support 16*8 Keyboard Matrix-scan, Expanding to 18*8 and 20*8
• GPIO
Support 104 Useful GPIO Pins Totally and Bit–addressable to Facility Firmware Coding
• FLASH
Support External On-Board 64K Flash via Matrix Interface (GP0, 1, 3)
• CIR
Support Decoding for the NEC Consumer IR Remote Control Format
• RTC
Real Time Clock Generator with 32.768 KHz Input
• ACPI
Support ACPI Appliance
Secondary Programmable I/O Address Communication Port in LPC Mode
• Package
-Pin QFP and 128-Pin LQFP Leadfree Package Options, in compliance with the RoHS (Restriction on Hazardous Substances)