2

VMEchip2

Local Bus Interrupter Enable Register (bits 24-31)

ADR/SIZ

 

 

$FFF4006C (8 bits of 32)

 

 

 

 

 

 

 

 

 

 

 

BIT

31

30

29

28

27

26

25

24

 

 

 

 

 

 

 

 

 

NAME

EACF

EAB

ESYSF

EMWP

EPE

EVI1E

ETIC2

ETIC1

 

 

 

 

 

 

 

 

 

OPER

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

 

 

 

 

 

 

 

 

 

RESET

0 PSL

0 PSL

0 PSL

0 PSL

0 PSL

0 PSL

0 PSL

0 PSL

 

 

 

 

 

 

 

 

 

This register is the local bus interrupter enable register. When an enable bit is high, the corresponding interrupt is enabled. When an enable bit is low, the corresponding interrupt is disabled. The enable bit does not clear edge-sensitive interrupts or prevent the flip flop from being set. If necessary, edge-sensitive interrupters should be cleared to remove any old interrupts and then enabled.

ETIC1

Enable tick timer 1 interrupt.

ETIC2

Enable tick timer 2 interrupt.

EVI1E

Enable VMEbus IRQ1 edge-sensitive interrupt.

EPE

Not used on MVME172.

EMWP

Enable VMEbus master write post error interrupt.

ESYSF

Enable VMEbus SYSFAIL interrupt.

EAB

Not used on MVME172.

EACF

Enable VMEbus ACFAIL interrupt.

2-82

Computer Group Literature Center Web Site

Page 160
Image 160
Motorola MVME172 manual Local Bus Interrupter Enable Register bits