1893CKLFT IDT, 1893CKLFT Datasheet - Page 74

• Manufacturer Part Number: 1893CKLFT
• Description: Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
• Manufacturer: IDT

Specifications of 1893CKLFT

• Rohs: yes
• Part # Aliases: ICS1893CKLFT

7.12.1 Data Rate (bit 17.15)
7.12.2 Duplex (bit 17.14)
7.12.3 Auto-Negotiation Progress Monitor (bits 17.13:11)
ICS1893CK-40, Rev. C, 06/02/09
•
When bit 17.15 is logic:
•
•
Note:
•
When bit 17.14 is logic:
•
•
Note:
The Auto-Negotiation Progress Monitor consists of the Auto-Negotiation Complete bit (bit 17.4) and the
three Auto-Negotiation Monitor bits (bits 17.13:11). The Auto-Negotiation Progress Monitor continually
examines the state of the Auto-Negotiation Process State Machine and reports the status of
Auto-Negotiation using the three Auto-Negotiation Monitor bits. Therefore, the value of these three bits
provides the status of the Auto-Negotiation Process.
These three bits are initialized to logic zero in one of the following ways:
•
•
•
If Auto-Negotiation is enabled, these bits continually latch the highest state that the Auto-Negotiation State
Machine achieves. That is, they are updated only if the binary value of the next state is greater than the
binary value of the present state as outlined in
Note:
Table 7-19. Auto-Negotiation State Machine (Progress Monitor)
Auto-Negotiation State Machine
Idle
Parallel Detected
Parallel Detection Failure
Ability Matched
Acknowledge Match Failure
Acknowledge Matched
The value of this bit is determined by the Data Rate bit 0.13.
Zero, it indicates that 10-MHz operations are selected.
One, the ICS1893CK-40 is indicating that 100-MHz operations are selected.
The value of this bit is determined by the Duplex Mode bit 0.8.
Zero, it indicates that half-duplex operations are selected.
One, the ICS1893CK-40 is indicating that full-duplex operations are selected.
A reset (see
Disabling Auto-Negotiation [see
Restarting Auto-Negotiation [see
This bit does not imply any link status.
This bit does not imply any link status.
An MDIO read of these bits provides a history of the greatest progress achieved by the
auto-negotiation process. In addition, the MDIO read latches the present state of the
Auto-Negotiation State Machine for a subsequent read.
ICS1893CK-40 Data Sheet - Release
Section 4.1, “Reset
Copyright © 2009, Integrated Device Technology, Inc.
Section 7.2.4, “Auto-Negotiation Enable (bit
Operations”)
Section 7.2.7, “Restart Auto-Negotiation (bit
Complete Bit
Negotiation
(Bit 17.4)
Auto-
All rights reserved.
0
0
0
0
0
0
Table
74
Auto-Negotiation Progress Monitor
7-19.
Monitor Bit 2
Negotiation
(Bit 17.13)
Auto-
0
0
0
0
1
1
Monitor Bit 1
Chapter 7 Management Register Set
Negotiation
(Bit 17.12)
Auto-
0
0
1
1
0
0
0.12)”]
0.9)”]
Monitor Bit 0
Negotiation
(Bit 17.11)
Auto-
0
1
0
1
0
1
June 2009