The MVME133XT is an intelligent single-board processor module containing both the MC68020 microprocessor and the MC68882 Floating Point Coprocessor (FPC).
The MVME133XT is an intelligent single-board processor module containing both the MC68020 microprocessor and the MC68882 Floating Point Coprocessor (FPC). Its main features are as follows:❏ Double-high/single-wide VMEmodule❏ Address 32/Data 32 (A32/D32) VMEbus master (compatible with A32/D16, A24/D32, A24/D16) interface❏ 25 MHz MC68020 Microprocessor (32-bit address and data)❏ 25 MHz MC68882 Floating Point Coprocessor❏ 4MB of shared local Dynamic RAM (32-bits wide, accessible from VMEbus)❏ Four 28-pin JEDEC sockets for ROMs/PROMs/EPROMs/EEPROMs (two banks, 16-bits wide each; maximum total 256KB)❏ Three 8-bit programmable timers (for tick and watchdog functions)❏ Battery-backed real-time clock (M48T18)❏ 8192 bytes of battery-backed SRAM (integrated in M48T18)❏ Front-panel asynchronous DB25 serial debug port (EIA-232-D, on MC68901 MFP)❏ Dual multi-protocol (synchronous/asynchronous) serial ports (Z8530)– One EIA-232-D (port B)– One EIA-485/EIA-422 (port A)❏ VMEbus system controller functions (with level 3 arbiter)❏ Single-level bus requester (level selectable via jumper)❏ VMEbus interrupter (selectable level, status ID $FF only)❏ VMEbus interrupt handler (supports all seven levels)❏ Front-panel status LEDs: FAIL, HALT, RUN, SCON❏ Front-panel switches: ABORT, RESET❏ Remote reset (through edge connector P2)❏ Five-position software-readable header (part of Module Status Register (MSR))
Product Overview
The MVME133XT 32-Bit Monoboard Microcomputer is a double-high VMEmodule. It occupies one slot in a VME system and requires power from both P1 and P2 connectors.
The module integrates large onboard components, including 4MB DRAM, 256KB capacity for ROM/PROM/EPROM/EEPROM, serial ports (including a debug port), a Floating Point Coprocessor (FPC), tick timer, watchdog timer, battery-backed real-time clock with SRAM, and a VMEbus interface with system controller functions.
The MVME133XT is a single-board MPU module designed for single-processor systems (not stand-alone). It is ideal for applications requiring real-time operation, such as industrial automation and robotics.
Equipment Required
The following equipment is necessary to build a complete system using the MVME133XT:
Terminal(s)
Disk drives and controllers
Chassis and power supply
Debug monitor: MVME133XTBug
Operating system
Optional Debug Monitor
The optionally available MVME133XTBug (or 133XTBug) debug monitor firmware package includes:
42 commands for debugging, up/downline loading, and disk bootstrap loading
A full set of onboard diagnostics
A one-line assembler/disassembler
Note
The MVME133XT has no parallel ports. To use parallel devices (e.g., a printer) with the MVME133XT, add a compatible module (such as the MVME050 System Controller Module) to the system.
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