KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 39

• Manufacturer Part Number: KS8721SL-EVAL
• Description: BOARD EVAL EXPERIMENT KS8721SL
• Manufacturer: Micrel Inc

Specifications of KS8721SL-EVAL

• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: KSZ8721SL
• Primary Attributes: 1 Port, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, Auto MDI, MDIX, >130 Meter Cable Driver, LDO, IEEE802.3u Compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1010

KS8721BL/SL (3.3V Single Power Supply 10/100BaseTX/FX MII Physical Layer Transceiver)
100BaseTX MII Receive Timing
RX+/RX-
CRS
RXDV
RXD[3:0]
RXER
RXC
t
t
t
t
t
t
t
t
P
WL
WH
SU
HD
RLAT
CRS1
CRS2
RXC period
RXC pulse width
RXC pulse width
RXD[3:0], RXER, RXDV setup 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 CRS asserted
"End of Stream" to CRS de-asserted
Start of
Stream
t
CRS1
t
RLAT
- 39 -
t
SU
t
HD
End of
Stream
KS8721BL/SL Preliminary Rev 0.90
t
WL
t
t
t
P
CRS2
WH
min.
20ns
20ns
1BT
typ.
40ns
20ns
20ns
2BT
140ns
170ns
Aug, 2003
max.
3BT