KSZ8873MLLI Micrel Inc, KSZ8873MLLI Datasheet - Page 14

• Manufacturer Part Number: KSZ8873MLLI
• Description: IC ETHERNET SWITCH 3PORT 64LQFP
• Manufacturer: Micrel Inc

Specifications of KSZ8873MLLI

• Controller Type: Ethernet Switch Controller
• Interface: MII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Number Of Primary Switch Ports: 3
• Internal Memory Buffer Size: 32
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• Power Supply Type: Analog
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Mounting: Surface Mount
• Jtag Support: No
• Operating Supply Voltage (max): 1.89/3.465V
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Micrel, Inc.
September 2009
Pin Number
59
60
P1LED0
P2LED1
Pin Name
Type
Ipd/O
Ipu/O
(1)
Description
Port 1 LED Indicators:
Default: Link/Act. (refer to register 195 bit[5:4])
Strap option: Port 3 duplex mode selection(P3DPX)
PU = port 3 default to half duplex mode
PD = port 3 default to full duplex mode
Port 2 LED Indicators:
Default: Speed (refer to register 195 bit[5:4])
Strap option: Serial bus configuration
Port 2 LED Indicators:
Default: Link/Act. (refer to register 195 bit[5:4])
Strap option: Serial bus configuration
Serial bus configuration pins to select mode of access to
KSZ8873MLL/FLL/RLL internal registers.
[P2LED1, P2LED0] = [0, 0] — I
(If EEPROM is not detected, the KSZ8873MLL/FLL/RLL will be
configured with the default values of its internal registers and the values
of its strap-in pins.)
[P2LED1, P2LED0] = [0, 1] — I
The external I
The KSZ8873MLL/FLL/RLL device addresses are:
1011_1111
1011_1110
[P2LED1, P2LED0] = [1, 0] — SPI slave mode
[P2LED1, P2LED0] = [1, 1] – SMI/MIIM-mode
In SMI mode, the KSZ8873MLL/FLL/RLL provides access to all its
internal 8-bit registers through its SCL_MDC and SDA_MDIO pins.
In MIIM mode, the KSZ8873MLL/FLL/RLL provides access to its 16-bit
MIIM registers through its SDC_MDC and SDA_MDIO pins.
Interface Signals
SPIQ
SCL_MDC
SDA_MDIO
SPISN
Interface Signals
SPIQ
SCL_MDC
SDA_MDIO
SPISN
Interface Signals
SPIQ
SCL_MDC
SDA_MDIO
SPISN
14
2
<read>
<write>
C master will drive the SCL_MDC clock.
Type
O
O
I/O
I
Type
O
I
I/O
I
Type
O
I
I
I
Description
Not used (tri-stated)
I
I
Not used
Description
Not used (tri-stated)
I
I
Not used
Description
SPI data out
SPI clock
SPI data In
SPI chip select
2
2
2
2
C clock
C data I/O
C clock
C data I/O
2
2
C master (EEPROM) mode
C slave mode
KSZ8873MLL/FLL/RLL
M9999-092309-1.2