Motorola MVME1X7P manual Functional Blocks

Models: MVME1X7P

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Functional Blocks

Each of the 31 interrupts can be enabled to generate a local bus interrupt at any level. For example, VMEbus IRQ5 can be programmed to generate a level 2 local bus interrupt.

The VMEbus AC fail interrupter is an edge-sensitive interrupter connected to the VMEbus ACFAILsignal line. This interrupter is filtered to remove the ACFAILglitch which is related to the BBSYglitch.

The SYS fail interrupter is an edge-sensitive interrupter connected to the VMEbus SYSFAILsignal line.

The write post bus error interrupter is an edge-sensitive interrupter connected to the local-bus-to-VMEbus write post bus error signal line.

The VMEbus IRQ1 edge-sensitive interrupter is an edge-sensitive interrupter connected to the VMEbus IRQ1signal line. This interrupter is used when one of the tick timers is connected to the IRQ1signal line. When this interrupt is acknowledged, the vector is provided by the VMEchip2 and a VMEbus interrupt acknowledge is not generated. When this interrupt is enabled, the VMEbus IRQ1 level-sensitive interrupter should be disabled.

The VMEchip2 VMEbus interrupter acknowledge interrupter is an edge- sensitive interrupter connected to the acknowledge output of the VMEbus interrupter. An interrupt is generated when an interrupt on the VMEbus from VMEchip2 is acknowledged by a VMEbus interrupt handler.

The tick timer interrupters are edge-sensitive interrupters connected to the output of the tick timers.

The DMAC interrupter is an edge-sensitive interrupter connected to the DMAC.

The GCSR SIG3-0 interrupters are edge-sensitive interrupters connected to the output of the signal bits in the GCSR.

The location monitor interrupters are edge-sensitive interrupters connected to the location monitor bits in the GCSR.

The software 7-0 interrupters can be set by software to generate interrupts.

The VMEbus IRQ7-1 interrupters are level-sensitive interrupters connected to the VMEbus IRQ7-IRQ1signal lines.

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Page 109
Image 109
Motorola MVME1X7P manual Functional Blocks