Solvline Eddy DKV2.1.0.3 - Manual (Page 49)

Chapter 3. Development
Environment
49
WARNING : When you use RJ45 which has transformer in its internal circuit, it is possible to
each product doesn’t have equal PIN spec. Therefore, you must confirm PIN number
Bellow is KSZ8041NL functions
• Fully compliant to IEEE 802.3u Standard
• Supports MDI/MDI-X auto crossover (Auto-MDI)
• MII interface support
• RMII interface support with external 50MHz system clock
• ESD rating (6kV)
• Built-in 1.8V regulator for core
• Available in 32-pin (5mm x 5mm) MLF
®
package
2.5.6
RTC
- We used D1340 which is connected I2C interface.
- In DS1340, you must use crystal of load capacitance = 12.5pF (Refer to bellow Crystal spec)
- You have to confirm Crystal spec because some RTC Chips have different spec
- We used CR2032 (235mAh) Lithium with Backup Battery
DS1340 Crystal Specifications
Parameter Symbol MIN TYP MAX Units
Normal Frequency fo 32.768 KHz
Series Resistance ESR 45,60 KΩ
Load Capacitance CL 12.5 pF
2.5.7 Temp Sensor
we used LM50(National) to AD0(PC0)