MEC1308
Overview
- 3.3V Operation with 5V Tolerant Buffers on PS/2 pins
- ACPI 1.0/2.0 PC99/PC2001 Compliant
- LPC Interface with Clock Run Support - Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems - 15 Direct IRQs - ACPI SCI Interface - nSMI output and supporting PM registers - Shadowed write only registers
- Internal 64K SRAM - Loaded at VCC1 power from the HOST/8051 SPI Memory Interface - Provides 64KB of 8051 program space - 32k-Byte region shared with 8051data space
- HOST/8051 SPI Memory Interface - 3-pin Full Duplex serial communication inter- face. - Two Chip Select Pins - Fully 8051 Controlled - Hardware Support for two SPI Flash Configu- rations: - Switched SPI Flash Configuration - Parallel Shared SPI Flash Configuration
- Two Power Planes - Low Standby Current in Sleep Mode
- ACPI Embedded Controller Interface
- Configuration Register Set Compatible with ISA Plug-and-Play Standard (Version 1.0a)
- High-Performance Embedded 8051 Keyboard and System Controller - Provides System Power Management - System Watch Dog Timer (WDT) - 8042 Style Host Interface - Supports Interrupt and Polling Access - 1024 Boot /ROM - 256 Bytes Data RAM - On-Chip Memory-Mapped Control Registers - Access to VCC0 Backed Registers - Up to 18x8 Keyboard Scan Matrix - Two 16-Bit Timer/Counters - Integrated Full-Duplex Serial Port Interface - Seventy-Three 8051 Interrupt Sources 2014 Microchip Technology Inc. - Thirty-Two 8-Bit, Host/8051 Mailbox Registers - Sixty-Four Maskable Hardware Wake-Up Events - Fast GATEA20 - Fast CPU_RESET - Multiple Clock Sources and Operating Fre- quencies - IDLE and SLEEP Modes
- Accurate Fail-Safe Ring Oscillator - Single Clock source for most 8051 and SIO functions - Provides 2% frequency accuracy - Lock Bit provides status
