1893AFLF IDT, 1893AFLF Datasheet - Page 105

• Manufacturer Part Number: 1893AFLF
• Description: Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
• Manufacturer: IDT
• Type: Integrated PHY Transceiverr

Specifications of 1893AFLF

• Rohs: yes
• Product: Ethernet Transceivers
• Data Rate: 10 Mb/s, 100 Mb/s
• Supply Voltage - Max: 3.47 V
• Supply Voltage - Min: 3.14 V
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-48
• Ethernet Connection Type: 100Base-TX, 10Base-T
• Maximum Supply Current: 160 mA
• Minimum Operating Temperature: 0 C
• Standard Supported: 802.3
• Part # Aliases: ICS1893AFLF

9.2.4 MAC Interface Pins
9.2.4.1 MAC Interface Pins for Media Independent Interface
ICS1893AF, Rev. D 10/26/04
This section lists pin descriptions for each of the following interfaces
•
Table 9-8
Table 9-8. MAC/Repeater Interface Pins: Media Independent Interface (MII)
COL
CRS
MDC
Name
Section 9.2.4.1, “MAC Interface Pins for Media Independent Interface”
Pin
ICS1893AF Data Sheet - Release
lists the MAC/Repeater Interface pin descriptions for the MII.
Number
Pin
43
44
27
Output
Output
Type
Input
Pin
Copyright © 2004, Integrated Circuit Systems, Inc.
Collision (Detect).
The ICS1893AF asserts a signal on the COL pin when the ICS1893AF
detects receive activity while transmitting (that is, while the TXEN signal is
asserted by the MAC/repeater, that is, when transmitting). When the
mode is:
Carrier Sense.
When the ICS1893AF mode is:
Management Data Clock.
The ICS1893AF uses the signal on the MDC pin to synchronize the
transfer of management information between the ICS1893AF and the
Station Management Entity (STA), using the serial MDIO data line. The
MDC signal is sourced by the STA.
Note:
1. The signal on the COL pin is not synchronous to either RXCLK or
2. In full-duplex mode, the COL signal is disabled and always remains
3. The COL signal is asserted as part of the signal quality error (SQE)
•
•
•
•
Note: The signal on the CRS pin is not synchronous to the signal on
10Base-T, the ICS1893AF detects receive activity by monitoring the
un-squelched MDI receive signal.
100Base-TX, the ICS1893AF detects receive activity when there are
two non-contiguous zeros in any 10-bit symbol derived from the MDI
receive data stream.
Half-duplex, the ICS1893AF asserts a signal on its CRS pin when it
detects either receive or transmit activity.
Either full-duplex or Repeater mode, the ICS1893AF asserts a signal
on its CRS pin only in response to receive activity.
TXCLK.
low.
test. This assertion can be suppressed with the SQE Test Inhibit bit (bit
18.2).
either the RXCLK or TXCLK pin.
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105
Chapter 9 Pin Diagram, Listings, and Descriptions
Pin Description
October, 2004