KSZ8041TL-EVAL Micrel Inc, KSZ8041TL-EVAL Datasheet - Page 26

• Manufacturer Part Number: KSZ8041TL-EVAL
• Description: BOARD EVALUATION KSZ8041TL
• Manufacturer: Micrel Inc

Specifications of KSZ8041TL-EVAL

• Main Purpose: Interface, Ethernet PHY
• Embedded: No
• Utilized Ic / Part: KSZ8041TL
• Primary Attributes: Single Chip PHY, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, HP Auto MDI, MDI-X Auto Polarity Correction, LinkMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3295; KSZ8041TL-EVAL

Micrel, Inc.
The following figure and table shows the receive data/control format for each segment:
Collision Detection
Collisions occur when CRS and TX_EN are simultaneously asserted. The MAC regenerates the MII collision signal from
CRS and TX_EN.
April 2007
CRS
X
X
CLOCK
SYNC
RX
RX_DV
0
1
CRS
RXD0
RX_ER
from
pervious
frame
One Data Byte
RX_DV
SMII RX Bit
CRS
RX_DV
RXD[0:7]
RXD0
Figure 3. SMII Receive Data/Control Segment
RXD1
Speed
0=10M
1=100M
Table 8. SMII RXD[0:7] Encoding Table
Table 7. SMII RX Bit Description
RXD1
Description
Carrier Sense
Receive Data Valid
Encoded Data
See SMII RXD[0:7] Encoding Table (below)
RXD2
Duplex
0=Half
1=Full
RXD2
RXD3
Link
0=Down
1=Up
26
RXD3
RXD4
Jabber
0=No
1=Yes
RXD4
RXD5
Upper
Nibble
0=Invalid
1=Valid
RXD5
RXD6
RXD6
False
Carrier
Detected
RXD7
M9999-042707-1.1
KSZ8041TL/FTL
RXD7
1