ICS1894-34
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE PHYCEIVER
IDT®
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE 19
ICS1894-34 REV B 052112
Register 6 - Auto-Negotiation Expansion
6.15 IEEE reserved Always 0 N/A CW 0† 0
6.14 IEEE reserved Always 0 N/A CW 0†
6.13 IEEE reserved Always 0 N/A CW 0†
6.12 IEEE reserved Always 0 N/A CW 0†
6.11 IEEE reserved Always 0 N/A CW 0† 0
6.10 IEEE reserved Always 0 N/A CW 0†
6.9 IEEE reserved Always 0 N/A CW 0†
6.8 IEEE reserved Always 0 N/A CW 0†
6.7 IEEE reserved Always 0 N/A CW 0† 0
6.6 IEEE reserved Always 0 N/A CW 0†
6.5 IEEE reserved Always 0 N/A CW 0†
6.4 Parallel detection fault No Fault Multiple technologies
detected
RO LH 0
6.3 Link partner Next Page
able
Link partner is not Next
Page able
Link partner is Next Page
able
RO 0 4
6.2 Next Page able Local device is not Next
Page able
Local device is Next Page
able
RO 1
6.1 Page received Next Page not received Next Page received RO LH 0
6.0 Link partner
Auto-Negotiation able
Link partner is not
Auto-Negotiation able
Link partner is
Auto-Negotiation able
RO 0
Register 7 -
Auto-Negotiation Next Page Transmit
7.15 Next Page Last Page Additional Pages follow RW 0 2
7.14 IEEE reserved Always 0 N/A RO 0†
7.13 Message Page Unformatted Page Message Page RW 1
7.12 Acknowledge 2 Cannot comply with
Message
Can comply with Message RW 0
7.11 Toggle Previous Link Code
Word was zero
Previous Link Code Word
was one
RO 0 0
7.10 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.9 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.8 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
Bit Definition When Bit = 0 When Bit = 1 Access
2
SF
2
Default
3
Hex
ICS1894-34
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE PHYCEIVER
IDT®
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE 20
ICS1894-34 REV B 052112
7.7 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0 0
7.6 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.5 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.4 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.3 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0 1
7.2 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.1 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 0
7.0 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RW 1
Register 8 - Auto-Negotiation Next Page Link Partner Ability
8.15 Next Page Last Page Additional Pages follow RO 0 0
8.14 IEEE reserved Always 0 N/A RO 0†
8.13 Message Page Unformatted Page Message Page RO 0
8.12 Acknowledge 2 Cannot comply with
Message
Can comply with Message RO 0
8.11 Toggle Previous Link Code
Word was zero
Previous Link Code Word
was one
RO 0 0
8.10 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.9 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.8 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.7 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0 0
8.6 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.5 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.4 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
Bit Definition When Bit = 0 When Bit = 1 Access
2
SF
2
Default
3
Hex
ICS1894-34
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE PHYCEIVER
IDT®
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH MII INTERFACE 21
ICS1894-34 REV B 052112
8.3 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0 0
8.2 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.1 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
8.0 Message code field
/Unformatted code field
Bit value depends on the
particular message
Bit value depends on the
particular message
RO 0
Register 9 through 15 - Reserved by IEEE
Register 16 - Extended Control Register
16.15 Command Override
Write enable
Disabled Enabled RW SC 0
16.14 ICS reserved Reserved Reserved RW/0 0
16.13 ICS reserved Reserved Reserved RW/0 0
16.12 ICS reserved Reserved Reserved RW/0 0
16.11 ICS reserved Reserved Reserved RW/0 0
16.10 PHY Address Bit 4 RO 0
16.9 PHY Address Bit 3 RO 0
16.8 PHY Address Bit 2 RO L
16.7 PHY Address Bit 1 RO L
16.6 PHY Address Bit 0 RO L
16.5 Stream Cipher Test
Mode
Normal operation Test mode RW 0
16.4 ICS reserved Reserved Reserved RW/0
16.3 NRZ/NRZI encoding NRZ encoding NRZI encoding RW 1 8
16.2 Transmit invalid codes Disabled Enabled RW 0
16.1 ICS reserved Reserved Reserved RW/0 0
16.0 Stream Cipher disable Stream Cipher enabled Stream Cipher disabled RW 0
Register
17 - Quick Poll Detailed Status Register
17.15 Data rate 10 Mbps 100 Mbps RO
17.14 Duplex Half duplex (mode not
supported)
Full duplex RO
17.13 Auto-Negotiation
Progress Monitor Bit 2
Reference Decode Table Reference Decode Table RO LM
X
0
17.12 Auto-Negotiation
Progress Monitor Bit 1
Reference Decode Table Reference Decode Table RO LM
X
0
Bit Definition When Bit = 0 When Bit = 1 Access
2
SF
2
Default
3
Hex

1894K-34LFT

Mfr. #:
Manufacturer:
IDT
Description:
Ethernet ICs 3.3V 10/100 PHY RMII
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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