DP83816-MAAP National Semiconductor, DP83816-MAAP Datasheet - Page 30

• Manufacturer Part Number: DP83816-MAAP
• Description: BOARD EVALUATION DP83816
• Manufacturer: National Semiconductor

Specifications of DP83816-MAAP

• Main Purpose: Interface, Ethernet
• Utilized Ic / Part: DP83816
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

4.0 Register Set
4.1 Configuration Registers
The DP83816 implements a PCI version 2.2 configuration register space. This allows a PCI BIOS to "soft" configure the
DP83816. Software Reset has no effect on configuration registers. Hardware Reset returns all configuration registers to
their hardware reset state. For all unused registers, writes are ignored, and reads return 0.
4.1.1 Configuration Identification Register
This register identifies the DP83816 Controller to PCI system software.
31-16
15-0
Bit
Bit Name
DEVID
VENID
18h-28h
48-FFh
Offset
0Ch
2Ch
3Ch
00h
04h
08h
10h
14h
30h
34h
38h
40h
44h
Offset: 00h
Tag: CFGID
Device ID
This field is read-only and is set to the device ID assigned by National Semiconductor to the DP83816,
which is 0020h.
Vendor ID
This field is read-only and is set to a value of 100Bh which is National Semiconductor's PCI Vendor ID.
CFGROM Boot ROM configuration register
CAPPTR
CFGLAT
CFGRID
CFGIOA
CFGSID
CFGMA
CFGINT
PMCSR
CFGCS
PMCAP
CFGID
Tag
Table 4-1 Configuration Register Map
Configuration Identification Register
Configuration Command and Status Register
Configuration Revision ID Register
Configuration Latency Timer Register
Configuration IO Base Address Register
Configuration Memory Address Register
Reserved (reads return zero)
Configuration Subsystem Identification Register
Capabilities Pointer Register
Reserved (reads return zero)
Configuration Interrupt Select Register
Power Management Capabilities Register
Power Management Control and Status Register
Reserved (reads return zero)
Access: Read Only
Size: 32 bits
30
Description
Description
Hard Reset: 0020100Bh
Soft Reset: Unchanged
Access
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
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