KS8999 Micrel Inc, KS8999 Datasheet - Page 13

• Manufacturer Part Number: KS8999
• Description: IC SWITCH 10/100 9PORT 208PQFP
• Manufacturer: Micrel Inc

Specifications of KS8999

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 208-MQFP, 208-PQFP
• 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
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 576-1023 - BOARD EVAL EXPERIMENT FOR KS8999
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

I/O Grouping
I/O Descriptions
January 2005
KS8999
Group Name
Group
PHY
IND
SNI
MII
CTRL
TEST
PWR
PHY
SNI
IND
MII
UP
I/O Names
MRXD[0:3]
LED[1:9][0]
MTXD[0:3]
FXSD[1:8]
RXM[1:8]
RXP[1:8]
TXM[1:8]
MTXD[0]
MRXD[0]
TXP[1:8]
MRXDV
MRXDV
MTXEN
MTXER
MTXEN
MCOL
MCRS
MRXC
MTXC
MCOL
MRXC
MTXC
ISET
Description
Physical Interface
Media Independent Interface
Serial Network Interface
LED Indicators
Unmanaged Programmable
Control and Miscellaneous
Test (Factory)
Power and Ground
Active Status
Analog
Analog
Analog
Clock
Clock
Clock
Clock
H
H
H
H
H
H
H
H
H
H
H
H
H
L
Description
Differential inputs (receive) for connection to media (transformer or fiber module)
Differential outputs (transmit) for connection to media (transformer or fiber module)
Fiber signal detect – connect to fiber signal detect output on fiber module with
appropriate voltage divider if needed. Tie low for copper mode.
Transmit Current Set. Connecting an external reference resistor to set transmitter
output current. This pin connects to a 3K 1% resistor to ground if a transformer with
1:1 turn ratio is used.
Four bit wide data bus for receiving MAC frames
Receive data valid
Receive collision detection
Carrier sense
Four bit wide data bus for transmitting MAC frames
Transmit enable
Transmit error
MII receive clock
MII transmit clock
Serial transmit data
Transmit enable
Serial receive data
Receive carrier sense/data valid
Collision detection
SNI receive clock
SNI transmit clock
Output (after reset)
Mode 0: Speed (on = 100/off = 10)
Mode 1: 10/100 + link + activity
Mode 2: Collision (on = collision/off = no collision)
Mode 3: Speed (on = 100/off = 10)
10Mb link activity = slow blink (non-periodic blinking)
100Mb link activity = fast blink (non-periodic blinking)
13
KS8999
Micrel