R0K561664S000BE Renesas Electronics America, R0K561664S000BE Datasheet - Page 18

• Manufacturer Part Number: R0K561664S000BE
• Description: KIT DEV RSK RSK-H8S/1664F
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of R0K561664S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: H8S/1664F
• Lead Free Status / RoHS Status: Not applicable / Not applicable

A crystal oscillator is fitted on the CPU board and used to supply the main clock input to the Renesas microcontroller. A second crystal
oscillator is provided to drive the real time clock.
this CPU board:
Warning: When replacing the default oscillator with that of another frequency, the debugging monitor will not function unless the following
are corrected:
The user is responsible for code written to support operating speeds other than the default. See the HMON User Manual for details of
making the appropriate modifications in the code to accommodate different operating frequencies.
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 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 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.
R129
R130
R131
R132
R133
Reference
6.7.Oscillator Sources
•
•
6.8.Reset Circuit
FDT programming kernels supplied are rebuilt for the new frequency
The supplied HMON debugging monitor is updated for baud rate register settings.
Boot Mode Selection
Crystal Selection
Memory Selection
Debugging Adaptor
Boot Mode Selection
Function
Crystal (X1
Crystal (X2)
Enables E8 to control the boot
mode selection.
Fit if 16MHz Crystal Fitted
Fit to enable SDRAM
Enables Debugging via the E10
adaptor.
Enables Serial Boot Mode
Table 6-7: Oscillators / Resonators
Table 6-7
Table 6-6: 2-Pin jumpers
Fitted
Fitted
Option Link Settings
Component
Fitted
details the oscillators that are fitted and alternative footprints provided on
12MHz (HC49/4H package)
32.768KHz (90SMX package)
16
Allows application control of the
boot mode.
12MHz Crystal Fitted
Default
Enables Debugging via the E8
adaptor.
Default
Alternative (Removed)
R133
R129
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