參數(shù)資料
型號(hào): AM79C874VC
廠商: ADVANCED MICRO DEVICES INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
中文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP80
封裝: 12 X 12 MM, PLASTIC, MO-136BAM, TQFP-80
文件頁(yè)數(shù): 50/60頁(yè)
文件大?。?/td> 869K
代理商: AM79C874VC
50
Am79C874
P R E L I M I N A R Y
100 Mbps MII Receive Timing
Figure 20.
100 Mbps MII Receive Start of Packet Timing
Symbol
t
MRJCRH100
t
MRJCOH100
t
MRTCRL100
t
MRTCOL100
t
MRERL100
t
MRJRA100
Parameter Description
CRS HIGH After First Bit of /J/
COL HIGH After First Bit of /J/
First Bit of /T/ to CRS LOW
First Bit of /T/ to COL LOW
First Bit of /T/ to RXD[3:0], RX_DV De-Asserting (Going LOW)
First Bit of/J/ to RXD[3:0], RX_DV, and RX_EN Active
RXD[3:0], RX_DV, RX_ER valid prior to the Rising Edge of
RX_CLK
RXD[3:0], RX_DV, RX_ER valid after the Rising Edge of RX_CLK
Min.
-
80
130
130
120
TBD
Max.
200
150
240
240
140
TBD
Unit
ns
ns
ns
ns
ns
ns
t
MRRDC100
10
ns
t
MRCRD100
10
ns
RX±
CRS
COL
RX_DV
RX_ER
tMRJCOH100
tMRJRA100
/J/K/
RX_CLK
RXD[3:0]
tMRJCRH100
tMRRDC100
tMRCRD100
22235I-22
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