Emerson MVME2500 manual 17 PLD GPIO2 Interrupt Register, Memory Maps and Registers

Models: MVME2500

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Memory Maps and Registers

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

7

6

 

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

Field

RSVD

RSVD

 

RSVD

RSVD

 

NMI

TICK0_INT

TICK1_INT

TICK2_INT

 

 

 

 

 

 

 

 

 

 

 

 

OPER

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RESET

0

0

 

0

0

 

0

0

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

 

 

 

 

94

MVME2500 Installation and Use (6806800L01H)

Page 94
Image 94
Emerson MVME2500 manual 17 PLD GPIO2 Interrupt Register, Memory Maps and Registers, Field Description