R0K438347S001BE Renesas Electronics America, R0K438347S001BE Datasheet - Page 15

• Manufacturer Part Number: R0K438347S001BE
• Manufacturer: Renesas Electronics America

Specifications of R0K438347S001BE

• Lead Free Status / RoHS Status: Supplier Unconfirmed

6.7. Oscillator Sources
A crystal oscillator is fitted on the RSK and used to supply the main clock input to the Renesas microcontroller.
oscillators that are fitted and alternative footprints provided on this RS
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 User mode. This circuit is not required on customer’s 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 port pin P24 states as required.
The port pin P24 must 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.
6.9. LCD Controller Interface
This RSK should be soldered on top of the LCD application board in JA1, JA2, JA5, JA6 and JA4 positions. These application headers
are detailed in section 9.2 in this user manual.
For more details on LCD application board please refer to LCD application board user manual.
R71
Reference
Application
Board Interface
Function
Component
Crystal (X1)
Crystal (X2)
Use ADTRG of application
board interface
Table 6-6: Oscillators / Resonators
Table 6-5: Option Links
Fitted
Fitted
Fitted
Option Link Settings
13
K:
32.768 KHz (90SMX package)
16 MHz (HC49/4H package)
Use IRQ4n of application board
interface
Alternative (Removed)
Table 6-6
R69
Related To
details the