KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 69

• Manufacturer Part Number: KS8993F A5
• Manufacturer: Micrel Inc

Specifications of KS8993F A5

• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Not Compliant

KS8993F
Register 70 (0x46): Loop Back Result Counter for CRC Error
Register 71 (0x47): Loop Back Result Counter for Timeout
Register 72 (0x48): Loop Back Result Counter for Good Packet
Register 73 (0x49): Additional Status (Center and Terminal side)
August 26, 2004
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
Name
CRC7
CRC6
CRC5
CRC4
CRC4
CRC2
CRC1
CRC0
Name
TO7
TO6
TO5
TO4
TO3
TO2
TO1
TO0
Name
GO7
GO6
GO5
GO4
GO3
GO2
GO1
GO0
Name
Hard
Version 1
Hard
Version 0
Model
Version 1
Model
Version 0
HMC Loop
Back
R/W
RO
RO
RO
RO
RO
RO
RO
RO
R/W
RO
RO
RO
RO
RO
RO
RO
RO
R/W
RO
RO
RO
RO
RO
RO
RO
RO
R/W
RO
RO
RW
RW
RO
Description
Center side only
This counter is incremented when loop back packet has CRC error.
0000_0000 : No CRC error received
0000_0001 : 1 CRC error received
1111_1111 : 255 CRC errors received
This counter is cleared when 0x00h is written to reg. 0x44h.
Description
Center side only
This counter is incremented when loop back packet has timeout.
0000_0000 : No timeout occurred
0000_0001 : 1 timeout occurred
1111_1111 : 255 timeouts occurred
This counter is cleared when 0x00h is written to reg. 0x44h.
Description
Center side only
This counter is incremented when loop back packet is returned good.
0000_0000 : No good packet
0000_0001 : 1 good packet
1111_1111 : 255 good packets
This counter is cleared when 0x00h is written to reg. 0x44h.
Description
Hard Version (bits [7:6])
Model Version (bits [5:4]):
1 = Center side receives “Loop Mode Stop Indication” frame from the
others: Reserved
:
:
00: 15km model
01: 40km model
:
Terminal side. This bit is self-cleared after it is read.
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Revision 1.0
Default
0
0
0
0
0
0
0
0
Default
0
0
0
0
0
0
0
0
Default
0
0
0
0
0
0
0
0
Default
0
1
0
0
0
Micrel