Analog Devices ADSP-219 Series Hardware Reference Manual page 33

The CardBus Function Event registers are defined to inter-operate with
the PCI Power Management Control/Status (
• PCI updates
CardBus
• PCI clears
CardBus
• CardBus updates
No effect in PCI
• CardBus clears
PCI PME_Status
• Power Management event occurs.
Both GWAKE
• Host Interrupt occurs.
INTRE is set,
The CSTSCHG Signal
In CardBus systems, power management events are signaled to the host by
an active-high signal called
with the ADSP-2192's active-low
mode, PME is asserted under the following conditions:
• The function's
• The function's
ADSP-2192 DSP Peripheral Registers
PME_EN
bit.
GWAKM and WKUPM take the new value.
PME_Status
(writes 1).
GWAKE
is cleared.
GWAKM or WKUP
PMCSR
.
GWAKE_E (writes 1).
bit is cleared.
and PME_Status are set;
INTA may assert.
CSTSCHG . An external FET or inverter is used
PME
INTRM
master interrupt/wakeup mask bit is 1
WKUPM master wakeup mask bit is 1
ADSP-219x/2192 DSP Hardware Reference
SYSCON
) register as follows:
.
PME may assert.
CSTSCHG
signal to create . In CardBus
B-33