���� �������������������������� MC68040 CPU The BVME4500 is a 3U MC68040 VMEbus processor module combining a wide selection of memory options with two Serial I/O channels and an Ethernet Port. It provides a good level of performance in applications 33MHz CPU clock where space is limited and its compact design and extended specification option makes it ideally suited to more hostile environments. 4096 byte data and instruction caches 32-bit wide burst fill dual ported memory interface with Bus Snooping Extensive choice of memory options via expansion interface: 16Mbytes of FLASH EPROM 96Mbytes DRAM 2Mbyte 32bit wide BOOT Sector Flash EPROM 2Mbytes 32bit wide Non-Volatile SRAM 2Kbits EPROM DMA driven Ethernet via AUI connector (10baseT) Two Interrupt driven RS232 ports Real Time Clock with battery backup 2 16bit timers Optimized master/slave VMEbus interface A24, A16: D16,D08 The 33Mhz 68040 processor is supported by 2Mbyte of 32bit wide SRAM Location monitor - Mailbox and 2Mbytes of 32bit wide Boot Sector Flash on-board with the ability to Interrupts accept up to two of BVM’s standard memory expansion modules giving capacities of up to 96Mbytes of DRAM and 8Mbytes of Flash. All memory Single Level Arbiter (SGL) is dual ported to the VMEbus. Expandable via Memory/OEM The BVME4500 provides two RS232 serial ports and a 10baseT Ethernet interface bus port all available through the front panel. It is available in standard commercial specification or extended specification for more extreme Single slot 3U form factor (dual slot environments. with full memory option) VxWorks and OS-9 BSPs available VMEbus rev C.1 compatible ���� The BVME4500 is fitted with a 33MHz MC68040 Reset and Abort switches are mounted behind the Processor. This provides a 68030 compatible front panel to remove the threat of accidental integer processor combined with an IEE754 access. The Reset switch is controlled by the compatible floating point unit (FPU). In addition two MAX791 to generate a CPU Reset , while Abort will fully independent data and instruction Paged provide an autovectored level 7 interrupt. demand page memory management units (MMU's) and two independent 4Kbyte caches provide The MAX791 provides a watchdog capability such effective bus interface with a high degree of that if enabled, the processor will be Reset if the instruction execution parallelism. The BVME4500 software fails to maintain the pulse to the watchdog uses a QFP package to reduce board space and circuit. ensure maximum reliability. The Real-time Clock is provided using the DP8570. FLASH EPROM The device offers battery backed date and time 2Mbytes of Boot Sector FLASH Memory. The boot maintenance, two 16 bit periodic timers with section is programmed via the VMEbus, a switch in interrupt and a small amount of non-volatile the front panel enables Boot Block programming. storage. The backup source is shared with the The Flash is 32bit wide and supports byte, word SRAM. and longword accesses. Non Volatile RAM The BVME4500 has 3 LED indicators. The Green 2Mbyte of battery backed 32bit wide SRAM dual LED indicates the processor is running valid code, ported to the VMEbus provides non-volatile storage. the Red LED indicates external accesses and the Main Memory yellow LED indicates Ethernet Traffic. The BVME4500 supports the BVME4000/6000 standard memory module bus and can therefore be fitted with one or two modules. The current range The BVME4500 has two configuration switches. of BVM memory modules allows up to 96MBytes SW1 has no specific task but can be used by CPU DRAM and an additional 16MBytes Flash. MC68040 operating at 33MHz containing software to set the board configuration. SW2 is FPU EEPROM used to enable Flash Boot programming over the MMU 2 The BVME4500 supports an I C Compatible 4096byte data & instruction Cache VMEbus. EEPROM, the PROM is accessed in logic registers Memory Module Interface 32bit wide burst fill dual-ported with Bus to simulate the BVME4000. This offers 256bytes of Snooping, no capacity limitations allowing Board Support Packs (BSPs) for both VxWorks non-volatile storage. many options using MEM390, MEM400, and OS-9 Operating Systems are available. MEM480 memory modules 2Mbytes of 32bit wide Boot sector FLASH. Boot Wherever possible the BVME4500 is designed to area programmable over the VMEbus. Two serial communication interfaces are provided be directly compatible with the BVME4000 and 2Mbyte 32bit wide Non Volatile (battery from a Z85230 SCC device. The 85230 provides BVME6000 families of SBC allowing easy backed) dual-ported SRAM 256byte EEPROM for configuration two fixed RS232 channels providing asynchronous migration of application between systems. settings baud rates up to 76.8Kbaud. Access is via 2 26 way Configuration Switch Micro D connectors mounted through the front SW1 for software configurations panel. SW2 for Flash programming Indication LED's CPU RUN, External Ethernet Traffic Real Time Clock The Ethernet interface is provided built around the (battery backed) including Tick Timer, 2 Intel 82596CA. This provides a 32bit DMA driven 16bit timers and non-volatile interface to 10BaseT Ethernet accessed via an configuration RAM (DP8570) Ethernet RJ45 mounted on the front panel. The 32- bit DMA High Performance DMA driven 10BaseT driven interface allows direct access to the entire Ethernet (82596CA) BVME4500 memory allowing full packet Serial Ports Two Interrupt driven Serial I/O Ports management by the 85296CA. capable of 76.8Kbaud RS232 (Z85230). VMEbus interface Optimised A24/D16/D08 master/slave System Control VMEbus Interrupter Full system controller functions are provided VMEbus Interrupt handler Location monitor - Mailbox Interrupt including a Single Level Arbiter and generation of VMEbus System Controller Functions RESET, SYSCLK and Bus timeout BERR. ARBITER:SGL,FAIR ROR (RWD option) Bus Master SYSCLK Driver SYSRESET Driver/Monitor power-up and switch A24/A16 : D16/D8 Programmable interrupt handler. VMEbus RESET minimum period=200mS Bus Slave BUS TIMEOUT period 128uS A24 : D16/D8 All Memory locations Dual Ported BUS ERROR monitor ACFAIL monitor (level 7 auto-vectored interrupt). onto the VMEbus. VMEbus Interrupts Interrupter Interrupter D08(O) ROAK: Generates vectored interrupt on one of seven I(107) single level, software programmable Interupt vector ID, software programmable software selectable levels. Interrupt handler D08(O): I(1-7) all levels, software Loc Monitor Generates local Interrupt if specific maskable. Dimensions VMEbus location is accessed. 100mm x 160mm (3U) single slot Power +5v 2.3A (max), +12V 0mA, -12V 0mA A MAX791 is used to perform the Power monitoring Environmental function including the non-volatile RAM 0 - 70°C, 95% humidity non-condensing housekeeping. (extended range to order). BVM Limited Hobb Lane Hedge End SOUTHAMPTON SO30 0GH UK Tel +44 (0)1489 780144 Fax +44 (0)1489 783589 Email: sales@bvmltd.co.uk http://www.bvmltd.co.uk Printed in the UK 4500/1 All trademarks acknowledged.