1893YI-10LFT IDT, 1893YI-10LFT Datasheet - Page 110
1893YI-10LFT
Manufacturer Part Number
1893YI-10LFT
Description
Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
Manufacturer
IDT
Datasheet
1.1893Y-10LFT.pdf
(152 pages)
Specifications of 1893YI-10LFT
Rohs
yes
Part # Aliases
ICS1893YI-10LFT
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9.3.3 Configuration Pins
ICS1893 Rev C 6/6/00
Table 9-4
Table 9-4.
10/100SEL
10TCSR
100TCSR
ANSEL
DPXSEL
Name
ICS1893 Data Sheet - Release
Pin
lists the configuration pins.
Configuration Pins
Number
Pin
10
26
24
2
9
Input or
Input or
Input or
Output
Output
Output
Type
Input
Input
Pin
Copyright © 2000, Integrated Circuit Systems, Inc.
All rights reserved.
10Base-T / 100Base-TX Select.
The ‘ Pin Type’ for this pin depends on the setting for the HW/SW pin
(pin 23). When the HW/SW pin is set for:
10M Transmit Current Set Resistor.
100M Transmit Current Set Resistor.
Auto-Negotiation Select.
The ‘ Pin Type’ for this pin depends on the setting for the HW/SW pin
(pin 23). When the HW/SW pin is set for:
Half-Duplex / Full-Duplex Select.
The ‘ Pin Type’ for this pin depends on the setting for the HW/SW pin
(pin 23). When the HW/SW pin is set for:
•
•
•
•
•
•
•
•
•
•
Hardware mode, this pin acts as an input. In this case, when the
signal on this pin is logic:
– Low, this pin selects 10Base-T operations.
– High, this pin selects 100Base-TX operations.
Software mode, this pin acts as an output that indicates the current
status of this pin. In this case, when the signal on this pin is logic:
– Low, this pin indicates 10Base-T operations are selected.
– High, this pin indicates 100Base-TX operations are selected.
A resistor, connected between this pin and ground, is required to
establish the value of the transmit current used in 10Base-T mode.
The value and tolerance of this resistor is specified in
“ Recommended Component Values”
A resistor, connected between this pin and ground, is required to
establish the value of the transmit current used in 100Base-TX
mode.
The value and tolerance of this resistor is specified in
“ Recommended Component Values”
Hardware mode, this pin acts as an input. In this case, when the
signal on this pin is logic:
– Low, this pin does not select Auto-Negotiation operations.
– High, this pin selects Auto-Negotiation operations.
Software mode, this pin acts as an output that indicates the current
status of this pin. In this case, when the signal on this pin is logic:
– Low, this pin indicates that Auto-Negotiation is disabled.
– High, this pin indicates that Auto-Negotiation is enabled.
Hardware mode, this pin acts as an input. In this case, when the
signal on this pin is logic:
– Low, this pin selects half-duplex operations.
– High, this pin selects full-duplex operations.
Software mode, this pin acts as an output that indicates the current
status of this pin. In this case, when the signal on this pin is logic:
– Low, this pin indicates that it is set for half-duplex operations.
– High, this pin indicates that it is set for full-duplex operations.
110
Chapter 9 Pin Diagram, Listings, and Descriptions
Pin Description
.
.
Section 10.3,
Section 10.3,
June, 2000
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