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PDF PC97551 Data sheet ( Hoja de datos )
| Número de pieza | PC97551 | |
| Descripción | Embedded Controller | |
| Fabricantes | Winbond Electronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PC97551 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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www.DataSheet4U.com
Product Brief
February 2006
Revision 1.1
PC97551
Embedded Controller for Notebook Systems
General Description
The Winbond PC97551 is an embedded controller (EC) for
mainstream notebook applications. It includes a highly opti-
mized set of functions, which provide a hardware/firmware
partition that enables the implementation of flexible solu-
tions; and its high-performance CPU core enables EC func-
tionality to be extended via the firmware.
The PC97551 incorporates National’s CompactRISC CR16B
core (a high-performance 16-bit RISC processor), internal
ROM and RAM memories, system support functions and a
Bus Interface Unit (BIU) that directly interfaces with both ex-
ternal memory (such as flash) and I/O devices.
System support functions include: watchdog, PWM, timers,
interrupt control, General-Purpose I/O (GPIO) with internal
keyboard matrix scanning, PS/2® Interface, SMBus® inter-
face, analog-to-digital (ADC) and digital-to-analog (DAC)
converters for battery charging circuitry, system monitoring
and analog controls.
The PC97551 interfaces with the host via an LPC interface
that provides the host with access to the Keyboard and em-
bedded controller interface channels and to the BIOS flash.
Like other members of Winbond’s Advanced I/O family, the
PC97551 is PC01 and ACPI compliant.
Outstanding Features
■ Host interface, based on Intel’s LPC Interface Specifi-
cation Revision 1.1, August 2002
■ PC2001 Rev 1.0, and ACPI 3.0 compliant
■ 16-bit RISC core, with 2 Mbytes address space, run-
ning at up to 20 MHz
■ Shared BIOS flash memory (external)
■ 92 GPIO ports (including keyboard scanning) with a
variety of wake-up events
■ JTAG-based debugger interface
■ Software and hardware controlled clock throttling and
extremely low current consumption in Idle mode
■ 176-pin LQFP and FBGA packages
System Block Diagram
South Bridge
Display
Keyboard Mouse Touch Touch
Pad Point
SuperI/O
LPC
PWBTN
ECSCI Sleep ON
PWUREQ State Control
SMI
Lid
Switch Brightness
Contrast
On/Off
4x
PS/2
Keyboard Scan
Internal
Keyboard
PCI TPM
PCI
Devices
& Boards
JTAG
Wake-Up
Enable
Development
PWM
Tacho
PC97551
Embedded Controller
for Notebook Systems
Switch Pad
System Control and LEDs
and Status
Beep
Power Switch
Speaker
Shared Flash Memory
EC Firmware,
System BIOS
Local Bus
DDrDvrrv.v
Voltage
Current
CPU
Fans
Temperature
AC
Detect
ON and
Switch
Control
Voltage
Current
Control Direct CD
Voltage
Temp.
Player
2x
SMBus
Power
Supply
Charger
Battery
Input Output
Port Port
Expansion GPIOs
AC Adaptor
Temp.
Sensor
E2PROM Docking
© 2006 Winbond Electronics Corporation
www.winbond.com
1 page  
www.DataSheet4U.com
Physical Dimensions
All dimensions are in millimeters
176-Low Profile Plastic Quad Flatpack (LQFP)
Order Number 97551D5
Revision 1.1
5 www.winbond.com
5 Page | ||
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