Emerson MVME2500 Computer Accessories User Manual


 
Memory Maps and Registers
MVME2500 Installation and Use (6806800L01H)
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5.5.14 PLD GPIO2 Interrupt Register
The Abort switch, Tick Timer 0, 1 and 2 interrupts are ORed together. The MVME2500 provides
an interrupt register that the system software reads to determine which device the interrupt
originated from. GPIO2 will be driven "low" if any of the interrupts asserts.
Table 5-17 PLD GPIO2 Interrupt Register
REG PLD Write Protect I2C Debug- 0xFFDF0095
Bit 765432 1 0
Field RSVD RSVD RSVD RSVD NMI TICK0_INT TICK1_INT TICK2_INT
OPER R
RESET000000 0 0
Field Description
NMI Abort switch interrupt if pressed less than three seconds.
1 - Interrupt enabled
0 - No Interrupt
TICK0_INT Tick Timer 0 interrupt
1 - Interrupt enabled
0 - No Interrupt
TICK1_INT Tick Timer 1 interrupt
1 - Interrupt enabled
0 - No Interrupt
TICK2_INT Tick Timer 2 interrupt
1 - Interrupt enabled
0 - No Interrupt