KBC1122/KBC1122P
Mobile KBC with Super
I/O, SFI, ADC and DAC
with SMSC
SentinelAlert!
TM
PRODUCT FEATURES
3.3V Operation with 5V Tolerant Buffers
ACPI 1.0b/2.0 and PC99a/PC2001 Compliant
LPC Interface with Clock Run Support
鈥?Serial IRQ Interface Compatible with Serialized
IRQ Support for PCI Systems
鈥?15 Direct IRQs
鈥?Three 8-Bit DMA Channels
鈥?ACPI SCI Interface
鈥?nSMI
鈥?Shadowed write only registers
LPC/Firmware Hub Host Flash Interface
鈥?Single Byte FWH Memory Read and FWH
Memory Write Support
鈥?FWH ID Support
鈥?16MB FWH Flash and Register Addressing,
128K Legacy BIOS Addressing
鈥?Single Byte LPC Memory Read and LPC Memory
Write Support
Serial Peripheral Interface (SPI)
鈥?3-pin Full Duplex serial communication interface.
鈥?Dual Ported Controller with Keeper Circuit
8 MByte Shared FlashROM Interface (SFI)
鈥?8051/Host CPU Hardware Arbitrated Interface
鈥?0.5 - 8MB - Host System BIOS & 8051 Keyboard
鈥?8051 64KB Code Space Accessible as Separate
32KB Pages in Flash
鈥?Low-Power Flash Access Modes
鈥?8051-Programmable Flash Access Protection
鈥?Read/Write/No-Access Protection
鈥?Variable Bank Sizes
Host Flash Address Redirection for Recovery
Serial Flash Programming Interface
Two Power Planes
鈥?Low Standby Current in Sleep Mode
鈥?Intelligent Auto Power Management for Super I/O
鈥?Main powered blocks power supplied by standby
power plane and controlled by power
management signals
3-Port ACPI Embedded Controller Interface
Data Brief
Configuration Register Set
鈥?Compatible with ISA Plug-and-Play Standard
(Version 1.0a)
鈥?Four Pin Selectable Addressing Options
鈥?8051-Programmable Base Address
High-Performance Embedded 8051 Keyboard and
System Controller
鈥?Provides System Power Management
鈥?System Watch Dog Timer (WDT)
鈥?8042 Style Host Interface Relocatable to 480
Different Base I/O Addresses
鈥?Supports Interrupt and Polling Access
鈥?Interrupt Accelerator
鈥?512 Bytes Data RAM
鈥?2 Kilobytes Scratch ROM/RAM
鈥?On-Chip Memory-Mapped Control Registers
鈥?Up to 18x8 Keyboard Scan Matrix
鈥?Two 16 Bit Timer/Counters
鈥?Eleven 8051 Interrupt Sources
鈥?Thirty-Two 8-Bit, Host/8051 Mailbox Registers
鈥?Thirty-six Maskable Hardware Wake-Up Events
鈥?Fast GATEA20
鈥?Fast CPU_RESET
鈥?Multiple Clock Sources and Operating
Frequencies up to 32MHz
鈥?IDLE and SLEEP Modes
鈥?Low Power Fail-Safe Ring Oscillator 鹵10%
Accuracy
鈥?Hibernation Timer with programmable wake-up
from 0.5ms to 128 minutes
鈥?8051-Driven 16550A UART
鈥?16-Byte Send/Receive FIFOs
鈥?External Baud Clock Option
鈥?Power-Fail Status Register
Advanced Infrared Communications Controller (IRCC
2.0)
鈥?IrDA V1.2 (4Mbps), HPSIR, ASKIR, Consumer IR
Support
鈥?Two IR Ports
鈥?Relocatable Base I/O Address
SMSC KBC1122
PRODUCT PREVIEW
Revision 0.8 (10-19-05)
SMSC
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