1893CKLFT IDT, 1893CKLFT Datasheet - Page 82

• 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

7.14.1 Node Configuration (bit 19.15)
7.14.2 Hardware/Software Priority Status (bit 19.14)
7.14.3 Remote Fault (bit 19.13)
7.14.4 ICS Reserved (bits 19.12:10)
7.14.5 Auto-MDI/MDIX (bits 19. 9:8) (New)
ICS1893CK-40, Rev. C, 06/02/09
The Node Configuration bit indicates the NOD/MODE.
•
•
The Hardware/Software Priority Status bit indicates the SW mode.
•
•
The ISO/IEC specification defines bit 5.13 as the Remote Fault bit, and bit 19.13 is functionally identical to
bit 5.13. The Remote Fault bit is set based on the Link Control Word received from the remote link partner.
When this bit is a logic:
•
•
See
The ICS1893CK-40 includes the Auto-MDI/MDIX crossover feature. The Auto-MDI/MDIX feature
automatically selects the correct MDI or MDIX configuration to match the cable plant by automatically
swapping transmit and receive signal pairs at the PHY. Auto-MDI/MDIX is defaulted on but may be disabled
for test purposes by writing (bits 19. 9:8). See Table 7-22 for AMDIX_EN (19,9) and MDI_MODE (19,8)
operation.
When AMDIX_EN (bit 19,9) is set to 0, the twisted pair transmit/receive is forced by the MDI_MODE bit
(19,8).
Table 7-22. Control Bits 19. 9:8
Default Values:
In Node mode:
The ICS1893CK-40 will only operate in the Node Configuration.
The (MDIO) register bits control the ICS1893CK-40 configuration.
The ICS1893CK-40 will only operate in the Software Configuration.
Zero, it indicates the remote link partner does not detect a Link Fault.
One, it indicates to an STA that the remote link partner detects a Link Fault.
Definitions:
– The SQE Test default setting is enabled.
– The Carrier Sense signal (CRS) is asserted in response to either transmit or receive activity.
Section 7.11.2, “ICS Reserved (bits
straight transmit = TP_AP & TP_AN
AMDIX_EN
[Reg 19:9]
ICS1893CK-40 Data Sheet - Release
0
0
1
1
receive = TP_BP & TP_BN
Copyright © 2009, Integrated Device Technology, Inc.
MDI_MODE
[Reg 19:8]
0
1
x
0
16.14:11)”, the text for which also applies here.
All rights reserved.
82
straight / cross (auto
selected)
straight / cross (auto
selected)
Configuration
Tx/Rx MDI
straight
cross
Chapter 7 Management Register Set
June 2009