Datasheet
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DP83849C
RMII and Bypass Register
17h RBR SIM_WR
ITE
Re-
served
DIS_TX_
OPT
Re-
served
Re-
served
Re-
served
Re-
served
PMD_LO
OP
Re-
served
Re-
served
RMII_M
ODE
RMII_RE
V1_0
RX_OVF
_STS
RX_UNF
_STS
ELAST_
BUF
ELAST_
BUF
LED Direct Control Register
18h LEDCR Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
LEDACT
_RX
BLINK_F
REQ
BLINK_F
REQ
DRV_SP
DLED
DRV_LN
KLED
DRV_AC
TLED
SPDLED LNKLED ACTLED
PHY Control Register
19h PHYCR MDIX_E
N
FORCE_
MDIX
PAUSE_
RX
PAUSE_
TX
BIST_FE PSR_15 BIST_
STATUS
BIST_ST
ART
BP_STR
ETCH
LED_
CNFG[1]
LED_
CNFG[0]
PHY
ADDR
PHY
ADDR
PHY
ADDR
PHY
ADDR
PHY
ADDR
10Base-T Status/Control Register
1Ah 10BT_S
ERIAL
Re-
served
Re-
served
Re-
served
Re-
served
SQUELC
H
SQUELC
H
SQUELC
H
LOOPBA
CK_10_
DIS
LP_DIS FORCE_
LINK_10
Re-
served
POLARI-
TY
Re-
served
Re-
served
HEARTB
EAT_DIS
JABBER
_DIS
CD Test Control and BIST Extensions Regis-
ter
1Bh CDCTRL
1
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
BIST_ER
ROR_C
OUNT
Re-
served
Re-
served
BIST_C
ONT_M
ODE
CDPattE
N_10
Re-
served
10Meg_
Patt_Ga
p
CDPatt-
Sel
CDPatt-
Sel
Phy Control Register 2
1Ch PHYCR2 Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
SOFT_R
ESET
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Energy Detect Control Register
1Dh EDCR ED_EN ED_AUT
O_UP
ED_AUT
O_DOW
N
ED_MAN ED_BUR
ST_DIS
ED_PW
R_STAT
E
ED_ERR
_MET
ED_DAT
A_MET
ED_ERR
_COUNT
ED_ERR
_COUNT
ED_ERR
_COUNT
ED_ERR
_COUNT
ED_DAT
A_COUN
T
ED_DAT
A_COUN
T
ED_DAT
A_COUN
T
ED_DAT
A_COUN
T
RESERVED
1Eh-1Fh Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
RESERVED REGISTERS
RESERVED
14h-1Fh Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
LINK DIAGNOSTICS REGISTERS - PAGE 2
100Mb Length Detect Register
14h LEN100_
DET
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
CABLE_
LEN
100Mb Frequency Offset Indication Register
15h FREQ10
0
SAMPLE
_FREQ
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
SEL_FC FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
FREQ_O
FFSET
TDR Control Register
16h TDR_CT
RL
TDR_EN
ABLE
TDR_10
0Mb
TX_CHA
NNEL
RX_CHA
NNEL
SEND_T
DR
TDR_WI
DTH
TDR_WI
DTH
TDR_WI
DTH
TDR_MI
N_MOD
E
Re-
served
RX_THR
ESHOLD
RX_THR
ESHOLD
RX_THR
ESHOLD
RX_THR
ESHOLD
RX_THR
ESHOLD
RX_THR
ESHOLD
TDR Window Register
17h TDR_WI
N
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
ART
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR_ST
OP
TDR Peak Register
18h TDR_PE
AK
Re-
served
Re-
served
TDR_PE
AK
TDR_PE
AK
TDR_PE
AK
TDR_PE
AK
TDR_PE
AK
TDR_PE
AK
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR_PE
AK_TIM
E
TDR Threshold Register
19h TDR_TH
R
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
TDR_TH
R_MET
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
TDR-
THR_TI
ME
Variance Control Register
1Ah VAR_CT
RL
VAR_RD
Y
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
VAR_FR
EEZE
VAR_TI
MER
VAR_TI
MER
VAR_TI
MER
Variance Data Register
1Bh VAR_DA
TA
VAR_DA
TA
VAR_DA
TAT
VAR_DA
TA
VAR_DA
TA
VAR_DA
TA
VAR_DA
TAT
VAR_DA
TA
VAR_DA
TA
VAR_DA
TA
VAR_DA
TAT
VAR_DA
TA
VAR_DA
TA
VAR_DA
TA
VAR_DA
TAT
VAR_DA
TA
VAR_DA
TA
RESERVED
1Ch Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Re-
served
Table 19. Register Table
Register Name Addr Tag Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0