MEC1322 Datasheet, PDF (106/456 Pages) Microchip Technology – Keyboard and Embedded Controller for Notebook PC

MEC1322
The EC executes instructions out of closely-coupled memory via the ICode Interface. Data accesses to closely-coupled
memory are handled via the DCode Interface. The EC accesses the rest of the on-chip address space via the System
AHB-Lite interface. The Debugger program in the host can probe the EC and all EC addressable memory via the JTAG
debug interface.
Aliased addressing spaces are provided at the chip level so that specific bus interfaces can be selected explicitly where
needed. For example, the EC’s Bit Banding feature uses the System AHB-Lite bus to access resources normally
accessed via the DCode or ICode interface.
DS00001719D-page 106
 2014 - 2015 Microchip Technology Inc.