R0K521276S001BE Renesas Electronics America, R0K521276S001BE Datasheet - Page 17

KIT STARTER FOR R8C/27

R0K521276S001BE

Manufacturer Part Number
R0K521276S001BE
Description
KIT STARTER FOR R8C/27
Manufacturer
Renesas Electronics America
Series
Renesas Starter Kits (RSK)r
Type
MCUr
Datasheets

Specifications of R0K521276S001BE

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/27
Silicon Core Number
R5F21276SNFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
R8C/27
Lead Free Status / Rohs Status
Compliant
6.7.Oscillator Sources
Crystal oscillators are fitted on the board and used to supply the main/sub clock input to the Renesas microcontroller.
Table 6-12: Oscillator details the oscillators that are fitted and alternative footprints provided on this board:
Main clock ‘X1’ is connected to microcontroller via the option resistors by the default.
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 and Single chip 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 Renesas Starter Kit. 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 pin 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 customers’ board meets all the reset timing requirements.
6.9. LIN Interface
This Renesas Starter Kit has hardware LIN interface. The interface is available on connector ‘J10’. The connector ‘J9’ functions as
power connector for LIN. The device can be operated either in Master node or Slave node. The device performs LIN communication in
cooperation with Timer RA and UART0.
For more details on LIN interface please refer to R8C/26 Group, R8C/27 Group Hardware Manual.
Component
Main clock (X1)
Sub clock (X2)
Fitted
Fitted
Table 6-12: Oscillator
20 MHz (HC/49U package)
32.768 kHz (90SMX package)
13

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