Introduction

The MEC (Memory Controller) device is used with the ERC32 processor. The device provides two UARTs, two timers and an interrupt interface. The interrupt interface allows for the raising and lowering of the 5 external interrupts provided by the ERC32 (IRQ 0 through (including) 4). The device model takes care of converting these to the relevant internal interrupts (i.e. SPARC IRQs 2,3,10,11 and 14). When raising (or lowering) a MEC interrupt you need to use numbers 0-4.