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| 型号： | ICS1893BKILFT |
| 厂商： | IDT, Integrated Device Technology Inc |
| 文件页数： | 66/133页 |
| 文件大小： | 0K |
| 描述： | PHYCEIVER LOW PWR 3.3V 56-VQFN |
| 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： | 56-VFQFN 裸露焊盘 |
| 供应商设备封装： | 56-VFQFP-EP（8x8） |
| 包装： | 标准包装 |
| 产品目录页面： | 1252 (CN2011-ZH PDF) |
| 其它名称： | 800-1795-6 |
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ICS1893BF, Rev. F, 5/13/10
May, 2010
38
Chapter 6 Functional Blocks
ICS1893BF Data Sheet - Release
Copyright 2009, IDT, Inc.
All rights reserved.
Upon receipt of an ESD, the Receive state machine returns to the IDLE state without passing the ESD to
the MAC Interface. Detection of an error forces the Receive state machine to assert the receive error signal
(RX_ER) and wait for the next symbol. If the ICS1893BF Receive state machine detects a premature end,
it forces the assertion of the RX_ER signal, sets the Premature End bit (bit 17.5) to logic one, and
transitions to the IDLE State.
6.3.4.2 PMA Receive Modules
The ICS1893BF has a PMA Receive module that provides the following functions:
NRZI Decoding
The Receive module performs the NRZI decoding on the serial bit stream received from the Twisted-Pair
Physical Medium Dependent (TP-PMD) sublayer. It converts the bit stream to a unipolar, positive, binary
format that the PMA subsequently passes to the PCS.
Receive Clock Recovery
The Receive Clock Recovery function consists of a phase-locked loop (PLL) that operates on the serial
data stream received from the PMD sublayer. This PLL automatically synchronizes itself to the clock
encoded in the serial data stream and then provides both a recovered clock and data stream to the PCS.
Link Monitoring
– The ICS1893BF’s PMA Link Monitoring function observes the Receive Clock PLL. If the Receive
Clock PLL cannot acquire ‘lock’ on the serial data stream, it asserts an error signal. The status of this
error signal can be read in the QuickPoll Detailed Status Register’s PLL Lock Error bit (bit 17.9). This
bit is a latching high (LH) bit. (For more information on latching high and latching low bits, see Section
– In addition, the ICS1893BF’s PMA Link Monitor function continually audits the state of the connection
with the remote link partner. It asserts a receive channel error if a receive signal is not detected or if
a PLL Lock Error occurs. These errors, in turn, generate a link fault and force the link monitor
function to clear both the Status Register’s Link Status bit (bit 1.2) and the QuickPoll Detailed Status
Register’s Link Status bit (bit 17.0).
6.3.5 PCS Control Signal Generation
For the PCS sublayer, there are two control signals: a Carrier Sense signal (CRS) and a Collision Detect
signal (COL).
The CRS control signals is generated as follows:
1. When a logic zero is detected in an idle bit stream, the Receive Functions examines the ensuing bits.
2. When the Receive Functions find the first two non-contiguous zero bits, the Receive state machine
moves into the Carrier Detect state.
3. As a result, the Boolean Receiving variable is set to TRUE.
4. Consequently, the Carrier Sense state machine moves into the Carrier Sense ‘on’ state, which asserts
the CRS signal.
5. If the PCS Functions:
a. Cannot confirm either the /I/J/ (IDLE, J) symbols or the /J/K/ symbols, the receive error signal
(RX_ER) is asserted, and the Receive state machine returns to the IDLE state. In IDLE, the
Boolean Receiving variable is set to FALSE, thereby causing the Carrier Sense state machine to
set the CRS signal to FALSE.
b. Can confirm the /I/J/K/ symbols, then the Receive state machine transitions to the ‘Receive’ state.
The COL control signal is generated by the transmit modules. For details, see Section 6.3.3.1, “PCS
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| ICS1893BKIT | 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:PHYceiver™ 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ICS1893BKLF | 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:PHYceiver™ 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ICS1893BKLFT | 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:PHYceiver™ 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ICS1893BKT | 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:PHYceiver™ 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ICS1893BRIEF | 制造商:ICS 制造商全称:ICS 功能描述:3.3-V 10Base-T/100Base-TX Integrated PHYceiver |
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