ICS1893BY-10 - Release
Chapter 8 Pin Diagram, Listings, and Descriptions
Table 8-4. Configuration Pins (Continued)
Pin
Pin
Pin
Pin Description
Name
Number
Type
DPXSEL
24
Input or Half-Duplex / Full-Duplex Select.
Output 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 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.
HW/SW
LOCK
LSTA
23
27
21
Input
Hardware/Software (Select).
When the signal on this pin is logic:
• Low, this pin selects Hardware mode operations.
• High, this pin selects Software mode operations.
Output (Stream Cipher) Lock (Acquired).
When the signal on this pin is logic:
• Low, the ICS1893BY-10 does not have a lock on the data stream.
• High, the ICS1893BY-10 has a lock on the data stream.
Output Link Status.
This pin is used to report the status of the link segment. When the
signal on this pin is logic:
• Low, there is no link established.
• High, there is a link established.
MII/SI
19
Input
Input
Media Independent Interface / Stream Interface (Select).
This pin is used in combination with the 10/100SEL pin to configure
the ICS1893BY-10 MAC/Repeater Interface. When the signal on this
pin is logic:
• Low, this pin configures the MAC/Repeater Interface as a Media
Independent Interface.
• High, this pin configures the MAC/Repeater Interface as a Stream
Interface in 100Base-TX or Serial Interface in 10Base-T.
NOD/REP
1
Node/Repeater (Select).
This selection on this pin affects both the SQE test and the Carrier
Sense (CSR) signal. When the signal on this pin is logic:
• Low, this pin enables the ICS1893BY-10 to default to node
operations.
• High, this pin enables the ICS1893BY-10 to default to repeater
operations.
ICS1893BY-10 Rev A 3/24/04
March, 2004
Copyright © 2004, Integrated Circuit Systems, Inc.
All rights reserved.
105
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
