A4N (MEN MIKRO)

The A4N CPU board is a universal intelligent VMEbus master and/or slave. Being equipped with sufficient local EPROM/Flash, SRAM, RTC etc., the 32-bit CPU (MC68332) handles three local M-Modules. The A4-EXT extension board allows to add another four local M-Modules with a second VMEbus slot. Each M-Module slot has its own DMA channel. The M-Module trigger lines can be controlled through the "TPU" (Time Processing Unit) of the MC68332. In 16-bit VMEbus systems, the I/O signals of the M-Modules are also available inside the rack at P2/J2. The A4N can access the VMEbus as an A24/A16/D16 master, and it can also perform slot-1 function. As a slave, the board has 2MB of genuine dual-ported RAM. Due to its bus architecture and I/O modularity the A4N is suited for a myriad of applications. Together with several M-Modules it can be used as a complete controlling computer or can fulfill I/O tasks in a VMEbus multimaster system. Its genuine dual-ported RAM makes the A4N also an ideal choice for use as an intelligent data acquisition system or for handling local I/O tasks.