Signal Description
I/O State at Various Test or Reset Modes
1.5 I/O State at Various Test or Reset Modes
Pin(s)
Isolate
Loopback
or Normal
operation
Software
Reset
Hardware
Reset
Power Down
Coma
Power
Down and
Isolate
MDI[3:0]±
TX_CLK
Active
Active
Active
Tri-state
Tri-state
Low
Tri-state
Tri-state
Tri-state
Tri-state
Tri-state
Reg. 16.3
state
Reg. 16.3 state
0 = Low
Reg. 16.3
state
0 = Low
1 = Active
1 = Active
0 = Low
0 = Static but
can be either
high or low
RXD[0],
RXD[2]
Tri-state
Tri-state
Active
Active
High
Low
High
Low
High
Low
High
Tri-state
Tri-state
RXD[7:3,1],
RX_DV,
RX_ER,
CRS
Low
COL
Tri-state
Tri-state
TBI mode -
input
else -active
Tri-state
Tri-state
Low
TBI mode -
input
else - low
TBI mode -
input
else - low
Tri-state
Tri-state
RX_CLK
Active
Reg. 16.3
state
Reg. 16.3 state
0 = Low
Reg. 16.3
state
0 = Low
1 = Active
1 = Active
0 = Low
0 = Static but
can be either
high or low
S_CLK±
S_OUT±
Active
Active
Tri-state
Tri-state
Reg. 16.3 state
0 = Tri-state
1 = Active
Tri-state
Active
MDIO
INT
Active
Active
Active
Tri-state
Active
Active
Active
Tri-state
Active
Tri-state
High
Tri-state
Tri-state
High
Active
Tri-state
High
Tri-state
Tri-state
High
Active
Tri-state
High
LED_***
TDO
Tri-state
Tri-state
Toggle
Tri-state
Active
Tri-state
125CLK
Reg. 16.4
state
0 = Toggle 0 = Toggle
1 = Low 1 = Low
Reg. 16.4
state
Reg. 16.4
state
0 = Toggle
1 = Low
Reg. 16.4 state
0 = Toggle
1 = Low
Reg. 16.3
state
0 = Static but
can be either
high or low
0 = Low
Reg. 16.4
state
0 = Toggle
1 = Low
Copyright © 2009 Marvell
March 4, 2009, Advance
Doc. No. MV-S105540-00, Rev. --
Page 33
Document Classification: Proprietary Information
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
