參數(shù)資料
型號(hào): ICS1894KI-40LFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 42/53頁
文件大小: 0K
描述: PHYCEIVER LOW PWR 3.3V 40QFN
標(biāo)準(zhǔn)包裝: 1
系列: PHYceiver™
類型: PHY 收發(fā)器
規(guī)程: MII,RMII
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 40-VFQFPN(6x6)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 800-2032-6
ICS1894-40
10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
PHYCEIVER
IDT 10BASE-T/100BASE-TX INTEGRATED PHYCEIVER WITH RMII INTERFACE
47
ICS1894-40
REV K 022412
10Base-T: Heartbeat Timing (SQE)
The table below lists the significant time periods for the 10Base-T heartbeat (that is, the Signal Quality Error). The
time periods consist of timings of signals on the following pins:
TXEN
TXCLK
COL
The 10Base-T Heartbeat (SQE) Timing Diagram shows the timing diagram for the time periods.
Note:
1. For more information on 10Base-T SQE operations, see the section “10Base-T Operation: SQE Test”.
2. In 10Base-T mode, one bit time = 100 ns.
10Base-T Heartbeat (SQE) Timing Diagram
Time
Period
Parameter
Conditions
Min.
Typ.
Max. Units
t1
COL Heartbeat Assertion Delay from
TXEN De-Assertion
10Base-T Half Duplex
850
1500
ns
t2
COL Heartbeat Assertion Duration
10Base-T Half Duplex
1000
1500
ns
t2
t1
TXEN
TXCLK
COL
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