Microchip ECE1200
ECE1200 - ACPI 6.1 compliant, 1.8V - 3.3V eSPI to LPC Bridge
The ECE1200 is a device designed to implement a Bridge function from an eSPI-configured Intel Chipset to a legacy downstream system, providing Master interfaces for an LPC bus, Serial IRQ and CLKRUN# features.
The ECE1200 is directly powered by two Suspend (S5) supply planes, at 3.3V and 1.8V nominal. The 1.8V supply is provided on two sets of pins: VTR_18 for I/O pins, and VTR_18_CORE for internal logic. The 3.3V supply VTR_33 is for 3.3V I/O pins only.
The ECE1200 senses a Runtime power plane (VCC) using the pin LPC_EN, which is intended to come from the PCH_PWROK signal supplied from the system. It uses this to emulate VCC-powered functionality on the appropriate pins in order to avoid backdrive in the system.
Features
- Detects and Supports Modern Standby State
- ACPI 6.1 Compliant
- Supports LPC-based SIO and EC devices such as SCH311x, SCH322x
- eSPI Peripheral Channel Cycles in 64K I/O Space will pass through as LPC I/O cycles, except for the local Plug-and-Play INDEX/DATA portal registers
- 40-pin VQFN package
- Industrial Temperature Range: -40°C to +85°C
Block diagram
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