KSZ8895MQ_12 MICREL [Micrel Semiconductor], KSZ8895MQ_12 Datasheet - Page 39

• Manufacturer Part Number: KSZ8895MQ_12
• Description: Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII interface
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Note:
1.
March 2012
REF_CLK
(not used)
External
CRS_DV
TX_EN
RXD1
RXD0
MAC
TXD1
TXD0
SW5-RMII MAC to MAC Connection
MAC/PHY mode in RMII is difference with MAC/PHY mode in MII, there is no strap pin and register configuration request in RMII, just follow
the signals connection in the table.
---
KSZ8895RQ
/SMCRSDV
SMTXC/SM
SW5-RMII
SMRXD[1]
SMRXD[0]
SMTXD[1]
SMTXD[0]
(not used)
SMRXDV
SMTXEN
REFCLK
(‘PHY mode’)
SMRXC
Output (clock
mode with
50MHz)
(Normal mode
without
connection)
Input (clock
comes from
SMRXC in clock
mode or external
clock in normal
mode)
KSZ8895RQ
SW Signal
Output
Output
Output
Type
Input
Input
Input
Table 5. Port 5 MAC5 SW5-RMII Connection
Carier sense/Receive
Transmit data enable
Transmit data bit 1
Transmit data bit 0
Receive data bit 1
Receive data bit 0
Reference Clock
Reference Clock
Description
Receive error
data valid
39
(not used)
REF_CLK
External
CRS_DV
TX_EN
--------
RXD1
RXD0
TXD1
TXD0
PHY
SW5-RMII MAC to PHY Connection
KSZ8895RQ
SMTXC/SM
/SMCRSDV
SW5-RMII
SMRXD[1]
SMRXD[0]
SMTXD[1]
SMTXD[0]
(not used)
SMRXDV
SMTXEN
REFCLK
SMRXC
(‘MAC mode’)
KSZ8895MQ/RQ/FMQ
Input (clock comes
from SMRXC in
clock mode or
external clock in
normal mode)
Output (clock mode
with 50MHz)
(Normal mode
without connection)
KSZ8895RQ SW
Signal Type
M9999-032612-1.5
Output
Output
Output
Input
Input
Input