DP83820BVUW National Semiconductor, DP83820BVUW Datasheet - Page 38

• Manufacturer Part Number: DP83820BVUW
• Description: IC INTERFACE CONTROLLER 208-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83820BVUW

• Controller Type: Ethernet Controller, MAC/BIU
• Interface: IEEE 802.3
• Voltage - Supply: 3.3V
• Current - Supply: 150mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83820BVUW

4.0 Register Set
4.1.13 Power Management Control and Status Register
This register contains PM control and status information.
18-16
31-24
23-16
15-8
14-9
7-0
7-2
1-0
20
19
bit
15
8
PMESTS
DSCALE
PSTATE
PMEEN
NLIPTR
CAPID
PMEC
BSE
tag
PMV
Offset: 44h
(Continued)
Tag: PMCSR
Bridge Support Extensions
PME Status
Data Scale
PME Enable
Reserved
Power State
Reserved
PME Clock
Power Management Version This bit field indicates compliance to a specific PM specification rev level.
Next List Item Pointer
Capability ID
description
Access: Read Write
reserved (reads return 0)
unused (reads return 0)
Sticky bit which represents the state of the PME logic, regardless of the
state of the PMEEN bit.
reserved (reads return 0)
When set to 1, this bit enables the assertion of the PME function on the
PMEN pin. When 0, the PMEN pin is forced to be inactive. This value can
be loaded from the EEPROM.
unused (reads return 0)
This 2 bit field is used both to determine the current power state of
DP83820, and to set a new power state.
Reserved (reads return 0)
Returns 0 to indicate PCI clock not needed for PMEN.
Currently set to 010b.
Offset into PCI configuration space for the location of the next item in the
Capabilities Linked List. Returns 00h as no other capabilities are offered.
Always returns 01h for Power Management ID.
Size: 32 bits
00 - D0
01 - D1
10 - D2
11 - D3hot
38
usage
Hard Reset: 00000000h
Soft Reset: unchanged
www.national.com