dp83846a National Semiconductor Corporation, dp83846a Datasheet - Page 28

• Manufacturer Part Number: dp83846a
• Description: Dsphyter ? Single 10/100 Ethernet Transceiver
• Manufacturer: National Semiconductor Corporation

Basic Mode Control Register
Basic Mode Status Register
PHY Identifier Register 1
PHY Identifier Register 2
Auto-Negotiation Advertisement Register
Auto-Negotiation Link Partner Ability Regis-
ter (Base Page)
Auto-Negotiation Link Partner Ability Regis-
ter Next Page
Auto-Negotiation Expansion Register
Auto-Negotiation Next Page TX Register
RESERVED
PHY Status Register
RESERVED
False Carrier Sense Counter Register
Receive Error Counter Register
PCS Sub-Layer Configuration and Status
Register
RESERVED
PHY Control Register
10Base-T Status/Control Register
CD Test Control Register
RESERVED
Register Name
00h
01h
02h
03h
04h
05h
05h
06h
07h
08-0fh
10h
11-13h
14h
15h
16h
17-18h
19h
1Ah
1Bh
1C-1Fh
Addr
BMCR
BMSR
PHYIDR1
PHYIDR2
ANAR
ANLPAR
AN-
LPARNP
ANER
ANNPTR
Reserved
PHYSTS
Reserved
FCSCR
RECR
PCSR
Reserved
PHYCTRL
10BTSCR
CDCTRL
Reserved
Tag
Reset
100Base-
T4
OUI MSB
OUI LSB
Next
Page Ind
Next
Page Ind
Next
Page Ind
Reserved
Next
Page Ind
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Unused
Unused
CD_Enab
le
Reserved
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10
OUI MSB
Loopback
100Base-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OUI LSB
TX FDX
Unused
Unused
DCD_
Comp
ACK
ACK
OUI MSB
100Base-
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OUI LSB
Message
Message
TX HDX
FIL_TTL
Remote
Remote
Unused
Unused
Speed
Select
Rx Err
Page
Page
Latch
Fault
Fault
EXTENDED REGISTERS
10Base-
OUI MSB
Auto-Neg
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OUI LSB
Polarity
Unused
Unused
Time[1]
Enable
FDXx
ACK2
ACK2
Status
BYP_
4B5B
rise-
T
OUI MSB
10Base-
False Car-
rier Sense
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OUI LSB
TOG_TX
PSR_15
Unused
FREE_
Time[0]
Power
Toggle
HDX
down
CLK
rise-
T
Signal De-
fallTime[1]
Reserved
OUI MSB
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OUI LSB
STATUS
PAUSE
Unused
TQ_EN
Isolate
CODE
BIST_
Code
tect
fallTime[0]
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Auto-Neg
OUI MSB
Descram
SD_FOR
CE_PMA
Bit 9
VNDR_
Unused
Restart
START
CODE
BIST_
Code
MDL
Lock
T4
T4
Reserved
OUI MSB
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Loopback
cdTestEn
Reserved
STRETC
Receive
OPTION
Bit 8
VNDR_
_10_dis
Duplex
TX_FD
TX_FD
CODE
Code
Page
MDL
SD_
BP_
H
Reserved
OUI MSB
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
FCSCNT
PAUSE_
Bit 7
Collision
VNDR_
Unused
LP_DIS
CODE
RXER-
Code
Test
MDL
CNT
STS
TX
TX
Reserved
Suppress
OUI MSB
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
FCSCNT
Bit 6
MF Pre-
Remote
Link_10
VNDR_
10_FD
10_FD
CODE
RXER-
CNFG
Force_
amble
LED_
Code
Fault
MDL
CNT
Reserved
Auto-Neg
Complete
OUI MSB
Reserved
Reserved
Reserved
FCSCNT
FORCE_
Reserved
Reserved
Reserved
Bit 5
VNDR_
100_OK
Pol_Cor
RXER-
Force_
CODE
Jabber
Detect
CNFG
LED_
Code
MDL
CNT
10
10
Reserved
Reserved
Complete
Reserved
Reserved
Reserved
Reserved
OUI MSB
Selection
Selection
Auto-Neg
FCSCNT
cdPattEn
Protocol
Protocol
Bit 4
Remote
VNDR_
Polarity
RXER-
CODE
ADDR
Code
Fault
MDL
PDF
CNT
PHY
_10
Reserved
Auto-Neg
OUI MSB
Reserved
Loopback
Reserved
Reserved
Reserved
cdPatEn_
Reserved
Selection
Selection
FCSCNT
Protocol
Protocol
LP_NP_
Bit 3
Autopol
RXER-
Ability
MDL_
CODE
Status
ADDR
Code
ABLE
REV
CNT
PHY
_Dis
100
Reserved
OUI MSB
Reserved
Reserved
Reserved
Reserved
Reserved
Selection
Selection
FCSCNT
BYPASS
patt_gap
Bit 2
Protocol
Protocol
10meg_
CODE
Duplex
RXER-
NRZI_
Status
MDL_
Status
ADDR
Code
ABLE
REV
CNT
PHY
Link
NP_
Reserved
OUI MSB
Selection
Selection
Reserved
Reserved
SCRAM_
Reserved
Reserved
FCSCNT
BYPASS
Bit 1
Protocol
Protocol
PAGE_
Hrtbeat
cdPatt-
Jabber
Detect
CODE
Speed
Status
RXER-
ADDR
MDL_
Sel[1]
Code
REV
CNT
PHY
_Dis
RX
Capability
Reserved
Extended
OUI MSB
Selection
Selection
Reserved
Reserved
FCSCNT
SCRAM_
Reserved
Reserved
LP_AN_
BYPASS
Bit 0
Protocol
Protocol
RXER-
cdPatt-
CODE
Status
ADDR
Jabber
MDL_
ABLE
Sel[0]
Code
REV
Link
CNT
PHY
_Dis
DE