TWR-K60N512-KIT Freescale Semiconductor, TWR-K60N512-KIT Datasheet - Page 12

• Manufacturer Part Number: TWR-K60N512-KIT
• Description: TOWER SYSTEM KIT K60N512
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K60N512-KIT

• Contents: 4 Boards, Documentation, DVD
• Processor To Be Evaluated: K60
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB, CAN, I2C, SPI, UART
• Dimensions: 3.5 in x 3.5 in x 3.5 in
• Operating Supply Voltage: 1.71 V to 3.6 V
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M4
• Silicon Core Number: MK
• Silicon Family Name: Kinetis - K60
• Kit Contents: 4x Brds, Cable, Docs
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System, K60N512
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.10 Ethernet
The K60N512 features a 10/100 Mbps Ethernet MAC with MII and RMII interfaces. The TWR-K60N512
routes the RMII interface signals from the K60 MCU to the Primary Connector, allowing the connection
to an external Ethernet PHY device on a Tower peripheral module.
When the K60 Ethernet MAC is operating in RMII mode, synchronization of the MCU clock and the 50
MHz RMII transfer clock is important. The MCU input clock must be kept in phase with the 50 MHz
clock supplied to the external PHY. Therefore, the TWR-K60N512 provides the option (see description
for J6 in Table 5) to clock the MCU from an external clock from the CLKIN0 pin on the Primary
Connector. The Tower peripheral module implementing the RMII PHY device should drive a 50 MHz
clock on the CLKIN0 pin that is kept in phase with the clock supplied to the RMII PHY.
The TWR-SER module that comes as part of the TWR-K60N512-KIT provides a 10/100 Ethernet PHY
that can operate in either MII or RMII mode. By default the PHY is boot strapped to operate in MII
mode; therefore jumper configuration changes may be required. Table 4 shows the settings for proper
interoperability between the Ethernet interface on the TWR-SER and the TWR-K60N512.
TWR-K60N512 Tower Module User's Manual
Table 4. Ethernet operation jumper settings
Table 3. Touch TWRPI socket pinout
Tower Module
TWR-K60N512
TWR-SER
TWR-SER
TWR-SER
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Description
5V VCC
3.3 V VCC
Electrode 0
3.3V VDDA
Electrode 1
VSS (Analog GND)
Electrode 2
Electrode 3
Electrode 4
Electrode 5
Electrode 6
Electrode 7
Electrode 8
Electrode 9
Electrode 10
Electrode 11
ADC: TWRPI ID 0
ADC: TWRPI ID 1
GND
Reset
Jumper
J12
J6
J2
J3
Setting
9-10
2-3
3-4
2-3
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