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ICS1894-40 Datasheet, PDF (23/52 Pages) Integrated Device Technology – 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
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ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
Bit
Definition
When Bit = 0
When Bit = 1
18.11 AMDIXEN
AMDIX disable
AMDIX enable
18.10 RXTRI
RX output enable
RX tri-state for MII/RMII
interface
18.9 REGEN
Vender reserved register Vender reserved register
access enable
(byte25~byte31) access
disable
18.8 TM_SWITCH
Switch TMUX2 to TMUX1, test control
18.7 ICS reserved
Read unspecified
Read unspecified
18.6 ICS reserved
Read unspecified
Read unspecified
18.5 Jabber inhibit
Normal Jabber behavior Jabber Check disabled
18.4 ICS reserved
Read unspecified
Read unspecified
18.3 Auto polarity inhibit
Polarity automatically
corrected
Polarity not automatically
corrected
18.2 SQE test inhibit
Normal SQE test
behavior
SQE test disabled
18.1 Link Loss inhibit
Normal Link Loss
behavior
Link Always = Link Pass
18.0 Squelch inhibit
Normal squelch behavior No squelch
Register 19h - Extended Control Register
19.15 Node Mode
Node mode
Repeater mode
19.14 Hardware/Software
Mode
Use bit00.13 select
speed
Use real time input pin
24(40NLG) select speed
19.13 Remote Fault
No faults detected
Remote fault detected
19.12 Register Bank select
19.11
[01]=Bank1, access register0x00~0x13 and
ICS1893CF register 0x14~0x1F
[00]=Bank0, access register0x00~0x13, new defined
register 0x14~0x19 and ICS1893CF register
0x1A~0x1F
[1x]=Bank0, same as [00
19.10 ICS reserved
Read unspecified
Read unspecified
19.9 AMDIX_EN
See Table 7-22
See Table 7-22
19.8 MDI_MODE
See Table 7-22
See Table 7-22
19.7 Twisted Pair Tri-State
Enable, TPTRI
Twisted Pair Signals are Twisted Pair Signals are
not Tri-Stated or No
Tri-Stated
effect
19.6 ICS reserved
Read unspecified
Read unspecified
19.5 ICS reserved
Read unspecified
Read unspecified
19.4 ICS reserved
Read unspecified
Read unspecified
Ac-
cess
RW
RW
RW
RW
RW/0
RW/0
RW
RW/1
RW
RW
RW
RW
RW
RO
RO
RW
RW
RO
RW
RW
RW
RW
RW
RW
SF De- Hex
fault
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0
–
1
–
0
0
–
0
–
0
–
0
–
0
4
–
1
–
0
–
0
–
0
2
–
0
–
1
–
0
–
0
0
–
0
–
0
–
0
IDT™ / ICS™ 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE 23
ICS1894-40 REV C 092909
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