KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 68

• 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 68 (0x44): Loop Back Setup1
Register 69 (0x45): Loop Back Setup2
August 26, 2004
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Name
T7
T6
T5
T4
T3
T2
T1
T0
Name
P7
P6
P5
P4
P3
P2
P1
P0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Center and Terminal sides
4Dh
in
Center side only
Description
Center side only
for
Use to select pattern for MC loop back packet
0000_0000 : 64 bytes
0000_0001 : 1518 bytes DA: Unicast
0000_0010 : 64 bytes
0000_0100 : 1518 bytes DA: Broadcast Data: 55AA
0000_1000 : 64 bytes
0001_0000 : 1518 bytes DA: Unicast
0010_0000 : 64 bytes
0100_0000 : 1518 bytes DA: Broadcast Data: 0F0F
1000_0000 : 1518 bytes DA: Broadcast Data: FF00
other values : N/A
where the packet’s:
0000_0000 : Clear valid transmit and valid receive counters in registers
0000_0001 : Send 1 MC loop back packet
0000_0010 : Send 2 MC loop back packets
0000_0111 : Send 7 MC loop back packets (default)
0110_0100 : Send 100 MC loop back packets
other values (0x65h to 0xFFh) : N/A
DA is [Register #52h][Register #53h][Register #54h]
SA is [Register #52h][Register #53h][Register #54h]
Type/length is 0x0800h
:
:
[Register #55h][Register #56h]([Register #57h] + 1).
And the last byte ([Register #57h] + 1) increments repeatedly by 1
the next loop back packet.
[Register #55h][Register #56h][Register #57h]
registers 46h, 47h and 48h.
and 4Eh. Also for center side, clear loop back counters
DA: Unicast
DA: Broadcast Data: 55AA
DA: Unicast
DA: Broadcast Data: 0F0F
- 68 -
Data: 55AA
Data: 55AA
Data: 0F0F
Data: 0F0F
Revision 1.0
Default
0
0
0
0
0
1
1
1
Default
0
0
0
0
0
0
0
0
Micrel