R0K521256S001BE Renesas Electronics America, R0K521256S001BE Datasheet - Page 15

• Manufacturer Part Number: R0K521256S001BE
• Description: KIT STARTER FOR R8C/25
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K521256S001BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• Silicon Manufacturer: Renesas
• Features: Coding And Debugging, E8A Emulator, RS232 Serial Connection
• Kit Contents: Board
• Silicon Family Name: R8C/24, R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6.7.Oscillator Sources
A crystal oscillator is fitted on the RSK and used to supply the main and sub clock input to the Renesas microcontroller.
Table 6-6: Oscillators / Resonators
6.8.Reset Circuit
The CPU Board includes a simple latch circuit that links the mode selection and reset circuit. This provides an easy method for swapping
the device between Boot Mode, User Boot Mode and User mode. This circuit is not required on customers boards as it is intended for
providing easy evaluation of the operating modes of the device on the RSK. Please refer to the hardware manual for more information
on the requirements of the reset circuit.
The Reset circuit operates by latching the state of the boot switch on pressing the reset button. This control is subsequently used to
modify the mode pin states as required.
The mode pins should change state only while the reset signal is active to avoid possible device damage.
The reset is held in the active state for a fixed period by a pair of resistors and a capacitor. Please check the reset requirements carefully
to ensure the reset circuit on the user’s board meets all the reset timing requirements.
details the oscillators that are fitted and alternative footprints provided on this RSK:
R64
R66
Reference
CAN
CAN
Function
Component
Crystal (X1)
Sub clock (X2)
Do not use CAN function,
R8C/25 Microcontroller do not
have CAN function
Do not use CAN function,
R8C/25 Microcontroller do not
have CAN function
Table 6-6: Oscillators / Resonators
Fitted
Fitted
Table 6-5: Option Links
Fitted
Option Link Settings
20 MHz (HC/49U package)
32.768 kHz (90SMX package)
11
Do not use CAN function,
R8C/25 Microcontroller do not
have CAN function
Do not use CAN function,
R8C/25 Microcontroller do not
have CAN function
Alternative (Removed)
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