Adaptec 1737100 Programmer Manual - Page 139

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. Bit(s) 31:16 15 14:5 4 3:2 1 0 rw r r/w* r r r r r Table 7-84. FunctionEventMask Register Reset Value Description/Function 0 Reserved: Always reads 0. 0 Intr: Interrupt Mask. If set, and bit 15 (INTR) of the FUNCTIONEVENT register is set, an interrupt is generated. 0 Reserved: Always reads 0. 0 GWake: Always reads 0. 0 BVD[2:1]: Always reads 0. 0 Ready: Always reads 0. 0 WP: Always reads 0. 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 7-85. FunctionPresentState Register Reset Bit(s) rw Value Description/Function 31:16 r 15 r 0 Reserved: Always reads 0. 0 Intr: Set to 1 if an interrupt is generated from somewhere in the chip other than the FORCEFUNCTION register. 14:5 r 4 r 0 Reserved: Always reads 0. 0 GWake: Always 0. The AIC-6915 does not support wakeup on CardBus as it requires an external power source. 2:3 r 1 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". 1 Ready: Always set. The AIC-6915 always indicates it is ready. 0 r 0 WP: Always cleared. Write protect is not supported. 7-67