
38
Lucent Technologies Inc.
FW322
1394A PCI PHY/Link Open Host Controller Interface
Data Sheet, Rev. 1
February 2001
Internal Registers
(continued)
Table 28. Power Management Capabilities Register Description
Bit
15
Field Name
PME_D3COLD
Type
R
Description
PME Support from D3 COLD.
Set to 0 indicating the FW322 will not
generate a PME event in the D3 COLD state.
PME Support from D3 HOT.
Set to 1 indicating that the FW322 can
generate a PME event in the D3 HOT state.
PME Support from D2.
Set to 1 indicating that the FW322 can
generate a PME in D2.
PME Support from D1.
Set to 1 indicating that the FW322 can
generate a PME in D1.
PME Support from D0.
Set to 1 indicating that the FW322 can
generate a PME in D0.
D2 Support.
This bit returns a 1 when read, indicating that the FW322
supports the D2 power state.
D1 Support.
This bit returns a 1 when read, indicating that the FW322
supports the D1 power state.
Dynamic Data Support.
This bit returns a 0 when read, indicating
that the FW322 does not report dynamic power consumption data.
Reserved.
Bits 7:6 return 0s when read.
Device-Specific Initialization.
This bit returns 0 when read, indi-
cating that the FW322 does not require special initialization beyond
the standard PCI configuration header before a generic class driver is
able to use it.
Auxiliary Power Source.
Since the FW322 does not support PME
generation in the D3 COLD device state, this bit returns 0 when read.
PME Clock
. This bit returns 0 when read, indicating that no host bus
clock is required for the FW322 to generate PME.
Power Management Version
. This field returns 010b when read, indi-
cating that the FW322 is compatible with the registers described in the
PCI Power Management Interface Spec., Rev.1.1.
14
PME_D3HOT
R
13
PME_D2
R
12
PME_D1
R
11
PME_D0
R
10
D2_SUPPORT
R
9
D1_SUPPORT
R
8
DYN_DATA
R
7:6
5
Reserved
DSI
R
R
4
AUX_PWR
R
3
PME_CLK
R
2:0
PM_VERSION
R