ICS1894-32_1 Datasheet, PDF (23/53 Pages) Integrated Device Technology – 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE

ICS1894-32
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
Bit
Definition
When Bit = 0
When Bit = 1
Access ² SF² Default³ Hex
17.11
Auto-Negotiation
Reference Decode Table Reference Decode Table
RO LM
0
0
Progress Monitor Bit 0
X
17.10
100Base-TX signal lost Valid signal
Signal lost
RO
LH
0
17.9
100BasePLL Lock Error PLL locked
PLL failed to lock
RO
LH
0
17.8
False Carrier detect
Normal Carrier or Idle False Carrier
RO
LH
0
17.7
Invalid symbol detected Valid symbols observed Invalid symbol received
RO
LH
0
0
17.6
Halt Symbol detected No Halt Symbol received Halt Symbol received
RO
LH
0
17.5
Premature End detected Normal data stream
Stream contained two
IDLE symbols
RO
LH
0
17.4
Auto-Negotiation
complete
Auto-Negotiation in
process
Auto-Negotiation
complete
RO
–
0
17.3
100Base-TX signal
detect
Signal present
No signal present
RO
–
0
0
17.2
Jabber detect
No jabber detected
Jabber detected
RO
LH
0
17.1
Remote fault
No remote fault detected Remote fault detected
RO
LH
0
17.0
Link Status
Link is not valid
Link is valid
RO
LL
0
Register 18h - 10Base-T Operations Register
18.15
Remote Jabber Detect No Remote Jabber
Remote Jabber Condition
RO
LH
0
–
Condition detected
Detected
18.14
Polarity reversed
Normal polarity
Polarity reversed
RO
LH
0
18.13
18.12
Data Bus Mode
Bit18.13 is latched pin RXTRI
Bit18.12 is latched SI
[1x]=RMII mode
[01]=SI mode (Serial interface mode)
[00]=MII mode
R0
–
–
R0
–
L
18.11
AMDIXEN
AMDIX disable
AMDIX enable
RW
–
L
–
18.10
RXTRI
RX output enable
RX tri-state for MII/RMII
RW
–
L
interface
18.9
REGEN
Vender reserved register Vender reserved register
RW
–
L
access enable
(byte25~byte31) access
disable
18.8
TM_SWITCH
Switch TMUX2 to TMUX1, test control
RW
–
0
18.7
ICS reserved
Read unspecified
Read unspecified
RW/0 –
–
–
18.6
ICS reserved
Read unspecified
Read unspecified
RW/0 –
–
18.5
Jabber inhibit
Normal Jabber behavior Jabber Check disabled
RW
–
0
18.4
ICS reserved
Read unspecified
Read unspecified
RW/1 –
1
IDT® 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
23
ICS1894-32 REV G 020509