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参数资料
| 型号： | 1893YI-10 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 网络接口 |
| 英文描述： | DATACOM, INTERFACE CIRCUIT, PQFP64 |
| 封装： | 10 X 10 MM, TQFP-64 |
| 文件页数： | 14/152页 |
| 文件大小： | 943K |
| 代理商： | 1893YI-10 |
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ICS1893 Rev C 6/6/00
June, 2000
110
Chapter 9
Pin Diagram, Listings, and Descriptions
ICS1893 Data Sheet - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
9.3.3
Configuration Pins
Table 9-4 lists the configuration pins.
Table 9-4.
Configuration Pins
Pin
Name
Pin
Number
Pin
Type
Pin Description
10/100SEL
2
Input or
Output
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:
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.
10TCSR
9
Input
10M Transmit Current Set Resistor.
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 Section 10.3,
“Recommended Component Values”.
100TCSR
10
Input
100M Transmit Current Set Resistor.
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 Section 10.3,
“Recommended Component Values”.
ANSEL
26
Input or
Output
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 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.
DPXSEL
24
Input or
Output
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 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.
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