KS8993F A5 Micrel Inc, KS8993F A5 Datasheet - Page 15

• 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
August 26, 2004
Pin #
93
94
95
96
97
98
99
100
Pin Name
PRSEL0
MDC
MDIO
SPIQ
SCL
SDA
SPIS_N
PS1
Type
Ipd
Ipu
Ipu/O
Opu
Ipu
Ipu/O
Ipu
Ipd
Description
Priority Select Select queue servicing if using split queues. Use the table
below to select the desired servicing. Note that this selection affects all
split transmit queue ports in the same way.
MII Management interface: clock input
MII Management interface: data input/output
Note: An external 4.7K pull up is needed on this pin when it is in use.
SPI slave mode: serial data output
See description in pin# (100, 101)
SPI slave mode / I2C slave mode: clock input
I2C master mode: clock output
See description in pin# (100, 101)
SPI slave mode: serial data input
I2C master/slave mode: serial data input/output
See description in pin# (100, 101)
SPI slave mode: chip select (active low)
See description in pin# (100, 101)
Serial bus configuration pins to select mode of access to KS8993F internal
(PRSEL,PRSEL0)
When SPIS_N is high, the KS8993F is deselected and SPIQ is held in
high impedance state.
A high-to-low transition is used to initiate SPI data transfer.
(0,0)
(0,1)
(1,0)
(1,1)
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Description
Transmit all high priority before
low priority
Transmit high priority and low
priority at 10:1 ratio.
Transmit high priority and low
priority at 5:1 ratio.
Transmit high priority and low
priority at 2:1 ratio.
Revision 1.0
Micrel