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4.0 Register Set
(Continued)
DP83816
4.2 Operational Registers
The DP83816 provides the following set of operational registers mapped into PCI memory space or I/O space. Writes to
reserved register locations are ignored. Reads to reserved register locations return undefined values.
Table 4-2 Operational Register Map
Offset
Tag
Description
Access
MAC/BIU Registers
00h
CR
Command Register
R/W
04h
CFG
Configuration Register
R/W
08h
MEAR
EEPROM Access Register
R/W
0Ch
PTSCR
PCI Test Control Register
R/W
10h
ISR
Interrupt Status Register
RO
14h
IMR
Interrupt Mask Register
R/W
18h
IER
Interrupt Enable Register
R/W
1Ch
IHR
Interrupt Holdoff Register
R/W
20h
TXDP
Transmit Descriptor Pointer Register
R/W
24h
TXCFG
Transmit Configuration Register
R/W
28-2Ch
Reserved
Reserved
30h
RXDP
Receive Descriptor Pointer Register
R/W
34h
RXCFG
Receive Configuration Register
R/W
38
Reserved
Reserved
3Ch
CCSR
CLKRUN Control/Status Register
R/W
40h
WCSR
Wake on LAN Control/Status Register
R/W
44h
PCR
Pause Control/Status Register
R/W
48h
RFCR
Receive Filter/Match Control Register
R/W
4Ch
RFDR
Receive Filter/Match Data Register
R/W
50h
BRAR
Boot ROM Address
R/W
54h
BRDR
Boot ROM Data
R/W
58h
SRR
Silicon Revision Register
RO
5Ch
MIBC
Management Information Base Control Register
R/W
60-78h
MIB
Management Information Base Data Registers
RO
7Ch
Reserved
Reserved
Internal Phy Registers
80h
BMCR
Basic Mode Control Register
R/W
84h
BMSR
Basic Mode Status Register
RO
88h
PHYIDR1
PHY Identifier Register #1
RO
8Ch
PHYIDR2
PHY Identifier Register #2
RO
90h
ANAR
Auto-Negotiation Advertisement Register
R/W
94h
ANLPAR
Auto-Negotiation Link Partner Ability Register
R/W
98h
ANER
Auto-Negotiation Expansion Register
R/W
9Ch
ANNPTR
Auto-Negotiation Next Page TX
R/W
A0-BCh
Reserved
Reserved
C0h
PHYSTS
PHY Status Register
RO
C4h
MICR
MII Interrupt Control Register
R/W
C8h
MISR
MII Interrupt Status Register
R/W
CCh
Reserved
Reserved
D0h
FCSCR
False Carrier Sense Counter Register
R/W
D4h
RECR
Receive Error Counter Register
R/W
D8h
PCSR
100 Mb/s PCS Configuration and Status Register
R/W
DCh-E0h
Reserved
Reserved
E4h
PHYCR
PHY Control Register
R/W
E8h
TBTSCR
10Base-T Status/Control Register
R/W
ECh-FCh
Reserved
Reserved
Summary of Contents for DP83816AVNG
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