KSZ8895 INFINEON [Infineon Technologies AG], KSZ8895 Datasheet - Page 17

• Manufacturer Part Number: KSZ8895
• Description: Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface
• Manufacturer: INFINEON [Infineon Technologies AG]

Micrel, Inc.
January 2011
Pin Number
71
72
73
74
75
76
77
78
79
80
81
SMRXDV/SMCRSDV
SMTXC/SMREFCLK
Pin Name
SMTXD2
SMTXD1
SMTXD0
SMTXER
SMRXD3
SMRXD2
SMRXC
VDDIO
GNDD
Type
IPD/O
IPD/O
IPD/O
GND
IPD
IPD
IPD
IPD
I/O
I/O
P
(1)
Port
Pin Function
MQ/FMQ: Port 5 Switch MII transmit bit 2.
RQ: no connection for RMII.
Port 5 Switch MII/RMII transmit bit 1.
Port 5 Switch MII/RMII transmit bit 0.
MQ/FMQ: Port 5 Switch MII transmit error.
RQ: no connection for RMII.
MQ/FMQ: Port 5 Switch MII transmit clock,
Input: SW5-MII MAC mode, Output: SW5-MII PHY modes.
RQ: Input SW5-RMII 50MHz +/-50ppm reference clock. The
50MHz clock comes from SMRXC Pin 78 when the device is the
clock mode which the device’s clock comes from 25MHz
crystal/oscillator from pins X1/X2. Or the 50MHz clock comes
from external 50MHz clock source when the device is the normal
mode which the device’s clock source comes from SMTXC pin
not from X1/X2 pins.
3.3V, 2.5V or 1.8V digital V
MQ/FMQ: Port 5 Switch MII receive clock,
Input: SW5-MII MAC mode, Output: SW5-MII PHY mode.
RQ: Output SW5-RMII 50MHz clock, this clock is used when
opposite doesn’t provide RMII reference clock or the system
doesn’t provide an external 50MHz clock for the RMII interface.
MQ/FMQ: SMRXDV is for Switch MAC5 MII receive data valid.
RQ: SMCRSDV is for MAC5 RMII Carrier Sense/Receive Data
Valid Output.
MQ/FMQ: Port 5 Switch MII receive bit 3.
RQ: no connection for RMII
Strap option:
PD (default) = Disable Switch SW5-MII full-duplex flow control
PU = Enable Switch SW5-MII full-duplex flow control.
MQ/FMQ: Port 5 Switch MII receive bit 2.
RQ: no connection for RMII
Strap option:
PD (default) = Switch SW5-MII in full-duplex mode;
PU = Switch SW5-MII in half-duplex mode.
Digital ground.
17
(2)
DD
for digital I/O circuitry.
KSZ8895MQ/RQ/FMQ
M9999-012011-1.2