ics1893cy-10 Integrated Device Technology, ics1893cy-10 Datasheet - Page 104

• Manufacturer Part Number: ics1893cy-10
• Description: 3.3-v 10base-t/100base-tx Integrated Phyceiver
• Manufacturer: Integrated Device Technology

8.3.3 Configuration Pins
ICS1893CY-10 Rev 1/07
Table 8-4
Table 8-4. Configuration Pins
10/100SEL
AMDIX_E
N
10TCSR
100TCSR
ANSEL
Name
ICS1893CY-10 Data Sheet - Release
Pin
lists the configuration pins.
Number
Pin
13
14
26
2
3
Input or
Input or
Output
Output
Type
Input
Input
Input
Pin
Copyright © 2007, Integrated Device Technology, Inc.
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:
Auto-MDIX Enable (built-in internal 50K Ohm pull-up)
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:
•
•
•
•
•
•
•
•
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
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
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.
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104
Chapter 8 Pin Diagram, Listings, and Descriptions
Pin Description
Values”.
Values”.
Section 9.3,
Section 9.3,