IDT 89HPES16NT2, User Manual

Page: 269 / 292

IDT Non-Transparent Mode Operation
PES16NT2 User Manual 10 - 139 April 15, 2008
Notes
2 INMSG2 RW1C 0x0 Inbound Message 2. This bit is set whenever a value is
written to the OUTMSG2 register located in PCI configura-
tion space on the opposite side of the non-transparent
bridge. The action taken when this bit is set is determined
by the Interrupt Control 0 (INTCTL0) register.
3 INMSG3 RW1C 0x0 Inbound Message 3. This bit is set whenever a value is
written to the OUTMSG3 register located in PCI configura-
tion space on the opposite side of the non-transparent
bridge. The action taken when this bit is set is determined
by the Interrupt Control 0 (INTCTL0) register.
4 INDBELL RO 0x0 Inbound Doorbell. This bit is set whenever a bit is set in
the Inbound Doorbell (INDBELL) register. The action taken
when this bit is set is determined by the Interrupt Control 0
(INTCTL0) register.
5 OSRD RW1C depends
on reset
condition
Sticky
Opposite Side Reset Detected. This bit is set whenever a
fundamental or hot reset is detected on the opposite side of
the non-transparent bridge. The action taken when this bit
is set is determined by the Interrupt Control 0 (INTCTL0)
register.
6 OSPSTATEM RW1C 0x0 Opposite Side Power State Modification. This bit is set
whenever a modification is made to the PSTATE field in
the PMCSR register on the opposite side of the non-trans-
parent bridge.
7 PALINKUP RW1C Undefined
Sticky
Port A Link Up. This bit is set whenever the port A data
link layer transitions from a DL_Down to a DL_Up state.
The action taken when this bit is set is determined by the
Interrupt Control 1 (INTCTL1) register.
8 PALINKDN RW1C Undefined
Sticky
Port A Link Down. This bit is set whenever the port A data
link layer transitions from a DL_up to a DL_Down state.
The action taken when this bit is set is determined by the
Interrupt Control 1 (INTCTL1) register.
10:9 Reserved RO 0x0 Reserved field.
11 PCLINKUP RW1C Undefined
Sticky
Port C Link Up. This bit is set whenever the port C data
link layer transitions from a DL_Down to a DL_Up state.
The action taken when this bit is set is determined by the
Interrupt Control 1 (INTCTL1) register.
12 PCLINKDN RW1C Undefined
Sticky
Port C Link Down. This bit is set whenever the port C data
link layer transitions from a DL_up to a DL_Down state.
The action taken when this bit is set is determined by the
Interrupt Control 1 (INTCTL1) register.
31:13 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type
Default
Value
Description