Sundance SMT300Q v.1.6 - Manual (Page 43)

Page 43 of 61 SMT300Q SMT300Q User Guide V1.65
active
0=INTB will never request LICU interrupts
4 INTA_TO_B When set INTA will act as interrupt request for INTB
output
3 INTD_TO_A When set INTD will act as interrupt request for INTA
output
2 INTC_TO_A When set INTC will act as interrupt request for INTA
output
1 INTB_TO_A When set INTB will act as interrupt request for INTA
output
0 INTA_TO_LB 1=INTA will request LICU interrupts when the input is
active
0=INTA will never request LICU interrupts
Table 24 : CompactPCI Interrupt Configuration Register
14.3.2 CompactPCI Interrupt Status Register(Offset 0x48, BAR0)
Bits Name Description
31 MAILBOX Mailbox Interrupt:
1=Mailbox interrupt request active
0=No mailbox interrupts pending
Cleared by clearing MAIL_RD_STAT and
MAIL_WR_STAT
30 LOCAL Local bus direct interrupt:
1=Local bus master requests a CompactPCI interrupt
0=No operation
This bit is set by writing 1 and cleared by writing 0
29-28 - Reserved
27 OUT_POST I2O outbound post list not empty: (see V3 datasheet)
26 - Reserved
25 DMA1 DMA channel 1 interrupt
24 DMA0 DMA channel 0 interrupt
23-15 - Reserved
14 INTC_TO_D INTD output from INTC input: when set (1) an interrupt has
occurred on INTC
13 INTB_TO_D INTD output from INTB input: when set (1) an interrupt has
occurred on INTB