Technical information

7-67
Register Descriptions
FunctionEventMask Register
Type: R/W
Internal Registers Subgroup: PCI Functional Registers
Byte Address: 0134h - 0137h
Controls which events cause a status change interrupt. Only bit 15 is implemented,
all other bits are zero.
FunctionPresentState Register
Type: R
Internal Registers Subgroup: PCI Functional Registers
Byte Address: 0138h - 013Bh
Reports the present state of various functions only the interrupt function (bit 15) can
change state. Bit 15 is the only bit implemented.
Table 7-84. FunctionEventMask Register
Bit(s) rw
Reset
Value Description/Function
31:16 r 0
Reserved:
Always reads 0.
15 r/w* 0
Intr:
Interrupt Mask. If set, and bit 15 (
I
NTR
) of the
F
UNCTION
E
VENT
register is set, an interrupt is generated.
14:5 r 0
Reserved:
Always reads 0.
4r0
GWake:
Always reads 0.
3:2 r 0
BVD[2:1]:
Always reads 0.
1r0
Ready:
Always reads 0.
0r0
WP:
Always reads 0.
Table 7-85. FunctionPresentState Register
Bit(s) rw
Reset
Value Description/Function
31:16 r 0
Reserved:
Always reads 0.
15 r 0
Intr:
Set to 1 if an interrupt is generated from somewhere in the chip
other than the
F
ORCE
F
UNCTION
register.
14:5 r 0
Reserved:
Always reads 0.
4r0
GWake:
Always 0. The AIC-6915 does not support wakeup on
CardBus as it requires an external power source.
2:3 r 3
BVD[2:1]:
Always 0 x 3 (11b). The card containing the AIC-6915 is
not expected to have batteries, so the battery is considered
“operational”.
1r1
Ready:
Always set. The AIC-6915 always indicates it is ready.
0r0
WP:
Always cleared. Write protect is not supported.