参数资料
型号: ICS1893BFLFT
厂商: IDT, Integrated Device Technology Inc
文件页数: 131/133页
文件大小: 0K
描述: PHYCEIVER LOW PWR 3.3V 48-SSOP
标准包装: 1
系列: PHYceiver™
类型: PHY 收发器
规程: MII
电源电压: 3.14 V ~ 3.47 V
安装类型: 表面贴装
封装/外壳: 48-BSSOP(0.295",7.50mm 宽)
供应商设备封装: 48-SSOP
包装: 标准包装
产品目录页面: 1252 (CN2011-ZH PDF)
其它名称: 800-1017-6
Chapter 8 Pin Diagram, Listings, and Descriptions
ICS1893BF, Rev. F, 5/13/10
May, 2010
97
ICS1893BF Data Sheet Rev. F - Release
Copyright 2009, IDT, Inc.
All rights reserved.
8.2.4 MAC Interface Pins
This section lists pin descriptions for each of the following interfaces
8.2.4.1 MAC Interface Pins for Media Independent Interface
Table 8-7 lists the MAC Interface pin descriptions for the MII.
Table 8-7. MAC Interface Pins: Media Independent Interface (MII)
Pin
Name
Pin
Number
Pin
Type
Pin Description
COL
43
Output
Collision (Detect).
The ICS1893BF asserts a signal on the COL pin when the ICS1893BF
detects receive activity while transmitting (that is, while the TXEN signal is
asserted by the MAC, that is, when transmitting). When the mode is:
10Base-T, the ICS1893BF detects receive activity by monitoring the
un-squelched MDI receive signal.
100Base-TX, the ICS1893BF detects receive activity when there are
two non-contiguous zeros in any 10-bit symbol derived from the MDI
receive data stream.
Note:
1. The signal on the COL pin is not synchronous to either RXCLK or
TXCLK.
2. In full-duplex mode, the COL signal is disabled and always remains
low.
3. The COL signal is asserted as part of the signal quality error (SQE)
test. This assertion can be suppressed with the SQE Test Inhibit bit (bit
18.2).
CRS
44
Output
Carrier Sense.
When the ICS1893BF mode is:
Half-duplex, the ICS1893BF asserts a signal on its CRS pin when it
detects either receive or transmit activity.
Either full-duplex or Repeater mode, the ICS1893BF asserts a signal
on its CRS pin only in response to receive activity.
Note: The signal on the CRS pin is not synchronous to the signal on
either the RXCLK or TXCLK pin.
MDC
27
Input
Management Data Clock.
The ICS1893BF uses the signal on the MDC pin to synchronize the
transfer of management information between the ICS1893BF and the
Station Management Entity (STA), using the serial MDIO data line. The
MDC signal is sourced by the STA.
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