KSZ8995FQI Micrel Inc, KSZ8995FQI Datasheet - Page 37

• Manufacturer Part Number: KSZ8995FQI
• Description: 5 Port 10/100 Switch With PHY And Frame Buffers ( )
• Manufacturer: Micrel Inc

Specifications of KSZ8995FQI

• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Industrial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 576-3300

Semptember 2008
Notes:
1.
Pin #
113
114
128
86
87
90
91
NC = No connect.
Ipd = Input w/internal pull-down.
Ipd/O = Input w/internal pull-down during reset, output pin otherwise.
Otri = Output tristated.
Pin Name
SCONF1
SCONF0
LED5-2
LED5-1
TEST2
PS1
PS0
PU/PD
Ipu/O
Ipu/O
Ipd
Ipd
Ipd
Ipd
NC
(1)
Description
Dual MII configuration pin.
mode and PHY mode, KSZ8995FQ supports PHY mode only.
Pins 91, 86, 87
000
001
010
011
100
101
110
111
Dual MII configuration pin.
LED indicator 2. Strap option: Aging setup. See “Aging” section PU (default) =
aging enable; PD = aging disable.
LED indicator 1. Strap option: PU (default): enable PHY[5] MII I/F. PD: tristate
all PHY[5] MII output. See “Pin 86 SCONF1.”
Serial bus configuration pin. For this case, if the EEPROM is not present, the
KS8995MA/FQ will start itself with the PS[1:0] = 00 default register values .
Pin Configuration
PS[1:0]=00
PS[1:0]=01
PS[1:0]=10
PS[1:0]=11
Serial bus configuration pin. See “Pin 113.”
NC for normal operation. Factory test pin.
(1)
37
For the Switch MII, KSZ8995MA supports both MAC
Switch MII
Disable, Otri
PHY Mode MII
MAC Mode MII
PHY Mode SNI
Disable
PHY Mode MII
MAC Mode MII
PHY Mode SNI
Serial Bus Configuration
I
Reserved
SPI Slave Mode for CPU Interface
Factory Test Mode (BIST)
2
C Master Mode for EEPROM
PHY [5] MII
Disable, Otri
Disable, Otri
Disable, Otri
Disable, Otri
Disable
PHY Mode MII
PHY Mode MII
PHY Mode MII
M9999-091508