KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 24

• 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
2.2.6 Port 1 LED Indicator Definition
2.2.7 Port 2 LED Indicator Definition
2.3
2.3.1 100BASE-TX Transmit
August 26, 2004
Physical Transceiver
Pin
#27
P1LED3
P1LED2
P1LED1
P1LED0
P2LED3
P2LED2
P2LED1
P2LED0
Signal Name
HWPOVR
LEDSEL1 = 0
LEDSEL0=0
Tri-state,
Pull-Down
Link/Activity
Full Duplex/
Collision
Speed
LEDSEL1 = 0
LEDSEL0=0
Tri-state,
Pull-Down
Link/Activity
Full Duplex/
Collision
Speed
Type
Input
Description
Hardware pin strapping to override the EEPROM value after reset
When HWPOVR = 0, the reset sequence for KS8993F are:
When HWPOVR = 1, the reset sequence for KS8993F are:
When HWPOVR = 1 during normal switch operation:
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•
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1. Port 2 (auto negotiation, speed, duplex) can be updated
Reads HW pin strapping configuration after reset.
Reads EEPROM configuration for all registers.
Reads HW pin strapping configuration after reset.
Reads EEPROM configuration for all registers, except for
port 2 (auto negotiation, speed, duplex) and Missing Link.
via pins P2ANEN, P2SPD and P2DPX, respectively.
These three pins are polled by the KS8993F.
LEDSEL0=1
Tri-state,
Pull-Down
100BASE-TX
Link/Activity
10BASE-T
Link/Activity
Full Duplex
LEDSEL0=1
Tri-state,
Pull-Down
100BASE-TX
Link/Activity
10BASE-T
Link/Activity
Full Duplex
- 24 -
LEDSEL1 = 1
LEDSEL0=0
Activity
Link
Full Duplex/
Collision
Speed
LEDSEL1 = 1
LEDSEL0=0
Activity
Link
Full Duplex/
Collision
Speed
LEDSEL0=1
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LEDSEL0=1
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Revision 1.0
Micrel