KS8721BT-EVAL Micrel Inc, KS8721BT-EVAL Datasheet - Page 26

• Manufacturer Part Number: KS8721BT-EVAL
• Description: BOARD EVAL EXPERIMENT KS8721BT
• Manufacturer: Micrel Inc

Specifications of KS8721BT-EVAL

• Main Purpose: Interface, Ethernet PHY
• Embedded: No
• Utilized Ic / Part: KSZ8721BT
• Primary Attributes: 1 Port, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, Auto MDI, MDIX, >130 Meter Cable Driver, IEEE802.3u Compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1009

KS8721B/BT
Symbol
t
t
t
t
t
t
t
t
M9999-041405
P
WL
WH
SU
HD
RLAT
CRS1
CRS2
Parameter
RXC Period
RXC Pulse Width
RXC Pulse Width
RXD [3:0], RXER, RXDV Set-Up to Rising Edge of RXC
RXD [3:0], RXER, RXDV Hold from Rising Edge of RXC
CRS to RXD Latency, 4B or 5B Aligned
“Start of Stream” to CSR Asserted
“End of Stream” to CSR De-Asserted
RX+/RX-
CRS
RXDV
RXD[3:0]
RXER
RXC
Table 4. 100BaseT MII Receive Timing Parameters
Start of
Stream
Figure 6. 100BaseT MII Receivce Timing
t
CRS1
t
RLAT
t
SU
26
t
HD
End of
Stream
t
WL
t
t
t
P
CRS2
WH
Min
106
154
20
20
Typ
40
20
20
6
Max
138
186
Micrel, Inc.
April 2005
Units
BT
ns
ns
ns
ns
ns
ns
ns