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DP83815 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
DP83815 10/100 Mb/s Integrated PCI Ethernet Media Access Controller and Physical Layer (MacPhyter™) National-Semiconductor
National ->Texas Instruments National-Semiconductor
DP83815 Datasheet PDF : 108 Pages
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4.0 Register Set (Continued)
Bit
Bit Name
Description
6
PERRSP Parity Error Response
When set, DP83815 will assert PERRN on the detection of a data parity error when acting as the target,
and will sample PERRN when acting as the initiator. Also, setting PERRSP allows SERREN to enable
the assertion of SERRN. When reset, all address and data parity errors are ignored and neither SERRN
nor PERRN are asserted.
5-3
Unused
(reads return 0)
2
BMEN Bus Master Enable
When set, DP83815 is allowed to act as a PCI bus master. When reset, DP83815 is prohibited from
acting as a PCI bus master.
1
MSEN Memory Space Address
When set, DP83815 responds to memory space accesses. When reset, DP83815 ignores memory
space accesses.
0
I/OSEN I/O Space Access
When set, DP83815 responds to I/O space accesses. When reset, DP83815 ignores I/O space
accesses.
4.1.3 Configuration Revision ID Register
This register stores the silicon revision number, revision number of software interface specification and lets the
configuration software know that it is an Ethernet controller in the class of network controllers.
Tag: CFGRID
Offset: 08h
Size: 32 bits
Access: Read Only
Hard Reset: 02000000h
Soft Reset: Unchanged
Bit
31-24
23-16
15-8
7-0
Bit Name
BASECL
SUBCL
PROGIF
REVID
Description
Base Class
Returns 02h which specifies a network controller.
Sub Class
Returns 00h which specifies an Ethernet controller.
Programming IF
Returns 00h which specifies the first release of the DP83815 Software Interface Specification.
Silicon Revision
Returns 00h which specifies the silicon revision.
34
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