KS8993 Micrel Inc, KS8993 Datasheet - Page 11

• Manufacturer Part Number: KS8993
• Description: IC SWITCH 10/100 3PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8993

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 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): 2.75/3.6V
• Operating Supply Voltage (min): 2.35V
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 576-1011 - BOARD EVAL EXPERIMENT FOR KS8993
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

May 2005
KS8993
Group
UP
MODESEL[3:0]
I/O Names
LED[1:3][3]
FFLOW1#
FFLOW2#
LED[1][3]
LED[1][2]
LED[1][1]
Active Status
H
L
L
L
Description
Output (after reset).
Mode 0: Link + Activity (toggle = receiving or transmitting, constant low = link,
constant high = no link).
Mode 1: Receive Activity (toggle during receiving / high = no receiving activity).
Mode 2: 100/link/act (constant low = link, toggle = act, constant high = no link).
Mode 3: Mode 3: Link + Activity (toggle = receiving or transmitting, constant low =
link, constant high = no link).
Note: Mode is set by MODESEL[3:0] ; please see description in UP “Unmanaged
Programming” section.
Mode select at reset time. LED mode is selected by using the table below. MODESEL
also controls the maximum frame length accepted.
MODESEL
Enable force flow control feature on port 1.
Pulled up = no force flow control feature on port 1 (default).
Flow control feature is enabled and disabled by auto-negotiation.
Pulled down = enable force flow control feature on port 1 regardless of auto-negotia-
tion result.
Program force flow control feature on port 2.
Pulled up = no force flow control feature on port 2 (default).
Flow control feature is enabled and disabled by auto-negotiation.
Pulled down = enable force flow control feature on port 2 regardless of auto-negotia-
tion result.
Program advertise flow control feature for 10/100BaseTX ports during auto-negotia-
tion at reset time.
Pulled low = no advertise flow control during auto-negotiation.
Pulled high = advertise flow control during auto-negotiation (default).
Programs force flow control feature on port 3, incuding MII port at reset time.
Pulled low = no force flow control feature on port 3, including MII port (default).
Flow control feature is enabled/disabled by auto-negotiation result.
Pulled high = enable force flow control feature on port 3, including MII port regardless
of auto-negotiation result.
Reserved - use float configuration.
3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
11
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
LED mode
LED mode 0
LED mode 1
LED mode 2
LED mode 3
Factory testing
Factory testing
Factory testing
Factory testing
Factory testing
Factory testing
Factory testing
LED mode 3
LED mode 0
Factory testing
LED mode 2
Factory testing
Max Length (no tag/tag)
1518/1522
1518/1522
1518/1522
1518/1522
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
Not applicable
1536/1536
1536/1536
Not applicable
1536 / 1536
Not applicable
KS8993
Micrel