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WPC8768L, WPC8769L Mobile Embedded Controller with SPITM Flash Interface and MCE-Compliant CIR Port
Product Brief
January 2007 Revision 1.0
WPC8768L, WPC8769L Mobile Embedded Controller with SPITM Flash Interface and MCE-Compliant CIR Port
General Description
The Winbond WPC8768L and WPC8769L are highly integrated embedded controllers (EC) with an embedded RISC core and integrated advanced functions. They are targeted for a wide range of portable applications. The WPC8768L/WPC8769L incorporate the CompactRISC(R) CR16CPlus core (a high-performance 16-bit RISC processor), on-chip ROM and RAM memories, system support functions and a Flash Interface Unit (FIU) that interfaces directly with external SPI flash memory devices. System support functions include: watchdog, PWM, timers, interrupt control, General-Purpose I/O (GPIO) with internal keyboard matrix scanning, PS/2(R) interface, SMBus(R) interface, UART, SPITM, high-accuracy analog-to-digital (ADC) and digital-to-analog (DAC) converters for battery charging, system control, system health monitoring and analog controls, and a SensorPathTM interface. The WPC8768L/WPC8769L interface with the host via an LPC interface. They also include a host-controlled Serial Port, CIR Port and Fast Infrared (FIR, IrDA 1.1 compliant) Port (WPC8768L only). The WPC8768L/WPC8769L are PC01 and ACPI compliant, and offer a single-chip solution for the most commonly used notebook PC I/O peripherals.
Outstanding Features

Shared BIOS flash memory Support for SPI flash memories Flash page programing support MCE-compliant Consumer Infrared (CIR) Port Fast Infrared Port (WPC8768L only) (FIR, IrDA 1.1 compliant)
High-accuracy, high-speed ADC Up to 88 GPIO ports (including keyboard scanning) with a variety of wake-up events 16-bit RISC core, with up to 4 Mbytes of external address space, running at up to 25 MHz 128-pin LQFP package
System Block Diagram
South Bridge Shared Flash Battery Panel Temp Sensor Switch Pad and LEDs Charger Brightness Contrast A/D and D/A D/A PWM Tacho SPI 12 x 8 - 18 x 8 2 x SMBus SPI 3 x PS2 Keyboard Matrix Main Analog Standby Backup Battery VBAT VDD VCC VCC
WPC8768L/WPC8769L
Keyboard Touch Pad Mouse
3 x Fan
CIR
Serial Port/ FIR
(WPC8768L only)
JTAG
(c) 2007 Winbond Electronics Corporation
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WPC8768L, WPC8769L
Device-Specific Information
The following table shows the main differences between the WPC8768L and WPC8769L devices. Feature FIR Port WPC8768L
WPC8769L
Features
Embedded Controller Features
Embedded Controller System Features
Processing Unit -- CompactRISC CR16CPlus 16-bit embedded RISC processor core (the "core") -- Up to 4 Mbytes of external address space Internal Memory -- 1 Kbyte of ROM -- 4 Kbytes of on-chip RAM -- All memory types can hold both code and data Flash Interface Unit (FIU) -- Up to 4 Mbytes of code and data -- Hardware-protected boot zone block protection -- SPI External Memory Up to 32 Mbits

Host Interface -- Comprises host interface channels, typically used for KBC and ACPI Private or Shared EC channels -- 8042 KBC-standard interface (legacy 60h, 64h) -- Two PM interface ports (legacy 62h, 66h; 68h, 6Ch) -- ACPI EC with either Shared or Private interface through the PM interface -- Two Mailbox areas for host-core communication, up to 4 Kbytes each; maximum 4 Kbytes total -- Generates IRQ, SMI and SCI -- Provides IRQ1 and IRQ12 support -- Provides Fast Gate A20 and Fast Host reset via firmware Interrupt Control Unit (ICU) -- 31 maskable vectored interrupts (of which eight are external) -- General-purpose external interrupt inputs through MIWU -- Enable and pending indication for each interrupt -- Non-maskable interrupt input Multi-Input Wake-Up (MIWU) -- Up to 40 wake-up or interrupt inputs -- Generates wake-up event to PMC (Power Management Controller) -- Generates interrupts to ICU -- User-selectable trigger conditions Internal Keyboard Matrix Scanning -- Up to 18 open-collector outputs (at least 12) -- Eight Schmitt inputs with internal pull-ups General-Purpose I/O (GPIO) Ports -- 64 port pins -- I/O pins individually configured as input or output -- Configurable internal pull-up / pull-down resistors -- Outputs individually configured as push-pull or open-drain -- Two echo inputs with wake-enabled interrupts -- Additional 12 GPIOs with wake-enabled interrupts -- Four GPIOs capable of 12 mA sink current -- Seven GPIOs are accessible to the host -- Optional low-cost external GPIO expansion through the SensorPath interface PS/2 Interface -- Three external ports: can be used for keyboard, mouse and an additional pointing device -- Byte-level handling via hardware accelerator
Fast Read mode Page programing support Configurable clock rate
-- Field upgradeable
Shared Memory Controller (SHM) -- Supports BIOS (flash) memory sharing with PC host -- Supports host-controlled code download and update -- Memory access protection
LPC System Interface

Based on Intel's LPC Interface Specification Revision 1.1, August 2002 Four optional 8-bit DMA channels I/O, Memory and 8-bit Firmware Memory read and write cycles, Firmware Memory writes may insert wait cycles Bootable Memory Support Base Address (BADDR1-0) straps to determine the base address of the index-data register pair -- Alternate base address configurable by the core LPCPD and CLKRUN support

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2
Revision 1.0
WPC8768L, WPC8769L
Features
(Continued)
Two SMBus (SMB) Interface Modules; each module: -- Is Intel SMBus, Philips I C and ACCESS.bus compatible -- Is SMBus master and slave -- Supports up to two simultaneous slave addresses -- Supports polling- and interrupt-controlled operations -- Generates a wake-up signal on detection of a Start condition while in Idle mode -- Supports an optional internal pull-up on SDA and SCL pins
2(R)
Development Support -- Interface to debugger via Nexus 5001 interface Physical connection using JTAG

On-board Debug mode with eight hardware breakpoints Embedded memory programing via JTAG with content read protection
Core Access to Host Modules -- Enabled via lock mechanism
Core Universal Asynchronous Receiver-Transmitter (CR_UART) Module -- A full-duplex UART channel -- Programmable baud rate -- Data transfer via interrupt or polling Two 16-bit Multi-Function Timer (MFT16) Modules; each module has: -- Two 16-bit timers with a 5-bit prescaler -- Pulse Width Modulation (PWM), Capture and Timer/Counter modes -- Capture inputs with programmable edge detection -- An interrupt on compare match Two Pulse Width Modulation (PWM) Modules -- Group A_PWM: two outputs -- Group B_PWM: one output Serial Peripheral Interface (SPI) Module -- Bus master -- 8-bit interface -- Up to 10 MHz data clock rate -- Clock can be selected to be high or low in Idle mode -- Clock polarity can be selected for normal (sample on rising edge) or alternate (sample on falling edge) Timer and Watchdog (TWD) -- 16-bit periodic interrupt timer with 30 s resolution and 5-bit prescaler for system tick and periodic wake-up tasks -- 8-bit watchdog timer with enable/disable -- "Watchdog occurred" flag -- Two watchdog reset options: warm or cold SensorPath Bus Interface -- Single Wire bus master -- Supports up to seven slave devices -- x1, x4 SensorPath clock rate support Analog-to-Digital Converter (ADC) -- Six channels, with 8-bit resolution -- 125 s conversion time -- External voltage reference Digital-to-Analog Converter (DAC) -- Four channels, 8-bit resolution -- 1 s conversion time for 50 pF load -- Full output range from AGND to AVCC
TM
Host Function Features
Mobile System Wake-Up Control (MSWC) -- Software-controlled off events -- Event routing to IRQ, SMI or PWUREQ Host- or Core-Controlled CEIR (Consumer Electronic IR) Receiver -- Supports RC-5, RC-6 and NEC protocols -- Wake-up on a pre-configured message Infrared Port -- Supports IR learning and emitting -- Software compatible with the 16550A and the 16450 -- Shadow register support for write-only bit monitoring -- HP-SIR -- ASK-IR option of SHARP-IR -- DASK-IR option of SHARP-IR -- Consumer Remote Control supports RC-5, RC-6, NEC, RCA and RECS 80 Fast Infrared (FIR) Port (WPC8768L only) -- Software compatible with the 16550A and the 16450 -- Shadow register support for write-only bit monitoring -- FIR IrDA 1.1 compliant -- HP-SIR -- ASK-IR option of SHARP-IR -- DASK-IR option of SHARP-IR -- Consumer Remote Control supports RC-5, RC-6, NEC, RCA and RECS 80 -- DMA support: one or two channels Serial Port (SP) -- In the WPC8768L, SP can be used only when FIR is not needed -- Software compatible with the 16550A and the 16450 -- Shadow register support for write-only bit monitoring -- UART data rates up to 1.5 Mbaud Supports Microsoft(R) Advanced Power Management (APM) Specifications Revision 1.2, February 1996 -- Generates the System Management Interrupt (SMI) PC01 Rev 1.0 and ACPI 3.0 Compliant -- PnP configuration register structure -- Flexible resource allocation for all logical devices Relocatable base address

15 IRQ routing options Four optional 8-bit DMA channels (where applicable)
Revision 1.0
3
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WPC8768L, WPC8769L
Features
(Continued)
Clocking, Supply and Package Information
Strap Input-Controlled Operating Modes: -- Shared BIOS memory mode -- TRI-STATE(R) mode -- Development mode
Clocks -- Single 32.768 KHz crystal oscillator -- On-chip high-frequency clock generators -- Either 32.768 KHz or CR16CPlus clock out Testability -- XOR-tree structure includes all device pins (except supply, A/D, D/A, and crystal oscillator pins), selected at power-up by strap inputs -- TRI-STATE device pins, selected at power-up by strap input (TRIS)
Power Supply -- 3.3V supply operation -- 5V tolerance and back-drive protection on all pins (except crystal oscillator, A/D, D/A, LPC bus, and SPI flash pins) -- Separate supply for host I/F (VDD) and EC functions (VCC) -- Backup battery input for wake-up configuration -- Reduced power consumption capability -- Software- or hardware-switched power modes: Active mode

Active mode executing WAIT Idle Deep Idle Suspend Power Off, for oscillator only, from the backup battery
-- Automatic wake-up on system events
Package Options -- 128-pin LQFP package
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4
Revision 1.0
WPC8768L, WPC8769L Mobile Embedded Controller with SPITM Flash Interface and MCE-Compliant CIR Port
Physical Dimensions
Control dimensions are in millimeters
128-Pin Low-Profile Plastic Quad Flatpack (LQFP) Order Numbers WPC8768LDG / WPC8769LDG
Important Notice Winbond products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Furthermore, Winbond products are not intended for applications wherein failure of Winbond products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Winbond customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
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Winbond Electronics Corporation America 2727 North First Street, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-5441798
Winbond Electronics (Shanghai) Ltd. 27F, 2299 Yan An W. Rd. Shanghai, 200336 China TEL: 86-21-62365999 FAX: 86-21-62365998
Winbond Electronics Corporation Japan 7F Daini-ueno BLDG, 3-7-18 Shinyokohama Kohoku-ku, Yokohama, 222-0033 TEL: 81-45-4781881 FAX: 81-45-4781800
Winbond Electronics (H.K.) Ltd. Unit 9-15, 22F, Millennium City, No. 378 Kwun Tong Rd., Kowloon, Hong Kong TEL: 852-27513100 FAX: 852-27552064
For Advanced PC Product Line information contact: APC.Support@winbond.com
Please note that all data and specifications are subject to change without notice. All the trademarks of products and companies mentioned in this product brief belong to their respective owners.
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Winbond does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Winbond reserves the right at any time without notice to change said circuitry and specifications.

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