VT6516 ETC, VT6516 Datasheet - Page 70

• Manufacturer Part Number: VT6516
• Description: 16/12 PORT 10/1000 ASE T/TX
• Manufacturer: ETC

SYMBOL
t
t
t
t
t
-
RCLK
CRS_DVndddddozzzndddddozzznddddddozzzz
RXD
TCLK
TX_EN zzzzzndddddddddozzzzzzzzzznddddd
TXD
-
Parameter
MDC cycle time -
MDC high time 180
MDC low time
MDIO setup time
(source by PHY)
MDIO hold time
(source by PHY)
MDIO output
R
RXDS
RXDH
TC
TXD
C
MII Interface Timing Characteristics
Management Interface (MI) Timing Characteristics
VIA Technologies, Inc.
lllrhhhhfllllrhhhhfllllrhhhhflll
lllrhhhhfllllrhhhhfllllrhhhhflll
+t
+t
ndddddozzzndddddozzznddddddozzzz
zzzzzndddddddddozzzzzzzzzznddddd
RXDS
RXDS
min
180
30
200
~
~
+t
+t
+
+
\\
\\
t
t
RXDH
RXDH
TXD
TXD
DESCRIPTION
RCLK cycle time
RXD, RXDV setup time
RXD, RXDV hold time
TCLK cycle time
TXD, TX_EN output
delay
0
~
~
~
~
typ
400
200
200
-
-
-
-70-
max
-
220
220
-
-
300
min
5
5
4
-
-
type
Preliminary VT6516 Datarsheet
40
40
-
-
-
unit
ns
ns
ns
ns
ns
ns
max
20
-
-
-
-
unit condition
ns
ns
ns
ns
ns
condition
to MDC rising
edge
to MDC rising
edge
to MDC rising
to RCLK50
rising edge
to RCLK50
rising edge
to RCLK50
rising edge