Motorola MVME172 - Manual (Page 81)

Introduction
http://www.mcg.mot.com/literature 2-3
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❏ VMEbus Interrupter:
– Software-configured IRQ1-IRQ7 interrupt request level.
– 8-bit software-programmed status/ID register.
❏ VMEbus System Controller:
– Arbiter with software-configured arbitration modes:
Priority (PRI),
Round-Robin-Select (RRS), and
Single-level (SGL).
– Programmable arbitration timer.
– IACK daisy-chain driver.
– Programmable bus timer.
– SYSRESET logic.
❏ Global Control Status Register Set:
– Four location monitors.
– Global control of locally detected failures.
– Global control of local reset.
– Four global attention interrupt bits.
– A chip ID and revision register.
– Four 16-bit dual-ported general purpose registers.
❏ Interrupt Handler:
– All interrupts are level-programmable.
– All interrupts are maskable.
– All interrupts provide a unique vector.
– Software and external interrupts.
❏ Watchdog timer.
❏ Two 32-bit tick timers.