DM9161CI DAVICOM [Davicom Semiconductor, Inc.], DM9161CI Datasheet - Page 44

• Manufacturer Part Number: DM9161CI
• Description: Industrial-Temperature 10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

46
Symbol
Tref%
Thold
RXD[1:0], CRS_DV,
Fref
Tref
Tsu
TXD[1:0], TX_EN,
RX_ER
REF_CLK Frequency
REF_CLK Duty Cycle
REF_CLK Clock Cycle
TXD[1:0], TX_EN, RXD[1:0], CRS_DV, RX_ER
Data Setup to REF_CLK rising edge
TXD[1:0], TX_EN, RXD[1:0], CRS_DV, RX_ER
Data hold from REF_CLK rising edge
REF_CLK
9.4.19 RMII Timing Diagram
9.4.20 RMII Timing Parameter
Parameter
10/100 Mbps Fast Ethernet Physical Layer Single Chip Transceiver
T
REF
49.9985
Min.
35
4
2
Tsu Thold
Typ.
50
20
-
-
-
50.0015
Max.
65
-
-
-
MHz
Unit
Version: DM9161CI-DS-F01
ns
ns
ns
%
DM9161CI
February 22, 2012
Conditions
(1.5KHZ)
30ppm
30ppm
Final