
viii
Normal Address Range ...............................................................................3-3
Detailed I/O Memory Maps............................................................................3-6
BBRAM,TOD Clock Memory Map .............................................................3-26
Interrupt Acknowledge Map .........................................................................3-28
VMEbus Memory Map ........................................................................................3-29
VMEbus Accesses to the Local Bus .............................................................3-29
VMEbus Short I/O Memory Map .................................................................3-29
Software Initialization .................................................................................................3-30
Multi-MPU Programming Considerations...........................................................3-30
Local Reset Operation..........................................................................................3-30
CHAPTER 4 FUNCTIONAL DESCRIPTION
Introduction ...................................................................................................................4-1
MVME167 Functional Description...............................................................................4-1
Data Bus Structure..................................................................................................4-1
MC68040 MPU......................................................................................................4-2
EPROM..................................................................................................................4-2
SRAM.....................................................................................................................4-2
Onboard DRAM.....................................................................................................4-3
Battery Backed Up RAM and Clock......................................................................4-4
VMEbus Interface ..................................................................................................4-4
I/O Interfaces..........................................................................................................4-5
Serial Port Interface.........................................................................................4-5
Parallel Port Interface......................................................................................4-6
Ethernet Interface............................................................................................4-6
SCSI Interface.................................................................................................4-7
SCSI Termination............................................................................................4-7
Local Resources .....................................................................................................4-7
Programmable Tick Timers.............................................................................4-7
Watchdog Timer..............................................................................................4-8
Software-Programmable Hardware Interrupts................................................4-8
Local Bus Timeout..........................................................................................4-8
Timing Performance...............................................................................................4-8
Local Bus to DRAM Cycle Times..................................................................4-8
ROM Cycle Times ..........................................................................................4-9
SCSI Transfers ................................................................................................4-9
LAN DMA Transfers......................................................................................4-9
Remote Status and Control...................................................................................4-10