KSZ8864RMN Micrel Inc, KSZ8864RMN Datasheet - Page 20

• Manufacturer Part Number: KSZ8864RMN
• Description: IC ETHERNET SW 4PORT 64QFN
• Manufacturer: Micrel Inc

Specifications of KSZ8864RMN

• Controller Type: Ethernet Switch Controller
• Interface: MII, RMII
• Voltage - Supply: 1.8V, 2.5V, 3.3V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Supplier Unconfirmed
• Current - Supply: -
• Lead Free Status / RoHS Status: Supplier Unconfirmed, Lead free / RoHS Compliant
• Other names: 576-3787; KSZ8864RMN

January 2011
Pin Number
48
49
50
51
52
59
Pin Name
SCONF0
P2LED1
P2LED0
P1LED1
P1LED0
PS1
Type
Ipu/O
Ipu/O
Ipu/O
Ipu/O
Ipd
Ipd
(1)
Port
2
2
1
1
Pin Function
See pins configuration table below:
00 (Default)
01
10
11
Port 4 Switch SW4-MII enabled with PHY mode or MAC mode, have to
configure SCONF0 Pin 48 with SCONF1 Pin 47 together.
See pin 47 description.
LED indicator for Port 2.
This pin has to be pulled down by 1K resistor in the design for
KSZ8864RMN.
LED indicator for Port 2.
Strap option: Switch MAC3 used only.
PU (default) = Select MII interface for the Switch MAC3 SW3-MII.
PD = Select RMII interface for the Switch MAC3 SW3-RMII.
LED indicator for Port 1.
Strap option: Switch RMII used only.
PU (default) = Select the device as clock mode. When use RMII interface, all
clock source come from Pin x1/x2 crystal 25MHz.
PD = Select the device as normal mode when use RMII interface. All clock
source comes from SW4-RMII SM4TXC pin with an external input 50MHz
clock. In the normal mode, the 25MHz crystal clock from pin X1/X2 doesn’t
take affect and should disable SW4-RMII SW4RXC 50MHz clock output by
the register 87.
The normal mode is used when SW4-RMII receive an external 50MHz RMII
reference clock from pin SM4TXC.
LED indicator for Port 1.
Strap option: for Switch MAC4 only.
PU (default) = Select MII interface for the Switch MAC4 SW4-MII.
PD = Select RMII interface for the Switch MAC4 SW4-RMII.
Serial bus configuration pin.
For this case, if the EEPROM is not present, the Switch 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
Pin# (47,48)
(2)
20
Serial Bus Configuration
I
SMI Interface Mode
SPI Slave Mode for CPU Interface
Factory Test Mode (BIST)
2
C Master Mode for EEPROM
SW4-MII MAC mode
SW4-MII PHY mode
SW4- MII/RMII
Switch MAC4
Disabled
Disabled
M9999-012011-1.2