78Q2123/78Q2133 MicroPHY™
10/100BASE-TX Transceiver
MII Transmit Interface
CHARACTERISTICS
SYMBOL
CONDITIONS
MIN
NOM
MAX
UNIT
Setup Time: TX_CLK to
TXD[3:0], TX_EN, TX_ER
15
ns
TXSU
Hold Time: TX_CLK to
0
ns
TXHD
TCKIN
TXD[3:0], TX_EN, TX_ER
CKIN-to-TX_CLK Delay
TX_CLK Duty-Cycle
0
40
60
ns
%
40
T
CKIN
CKIN
TX
SU
TX_CLK
TX
HD
TXD[3:0]
TX_EN
or
TX_ER
Transmit Inputs to the 78Q2123/78Q2133
MII Receive Interface
CHARACTERISTICS
SYMBOL
CONDITIONS
MIN
NOM
MAX
UNIT
Receive Output Delay:
RX_CLK to RXD[3:0],
RX_DV, RX_ER
10
30
ns
RXDLY
RX_CLK Duty-Cycle
40
60
%
RX
DLY (MAX)
RX_CLK
RX
DLY
(MIN)
RXD[3:0]
RX_DV
or
RX_ER
Receive Outputs from the 78Q2123/78Q2133
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© 2009 Teridian Semiconductor Corporation
Rev 1.5
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
