Oscillator Sources; Reset Circuit - Renesas R8C/Tiny Series User Manual

Table 6-9 below describes the function of the option links associated with serial configuration. The default configuration is indicated by
BOLD text.
Reference Function
R36 Analog configuration
R66 Analog configuration
R40 Analog configuration
R41 Analog configuration
Table 6-10 below describes the function of the option links associated with other options. The default configuration is indicated by BOLD
text.
Reference Function
R49 Pin function select
R58 Pin function select
R56 Pin function select
R59 Pin function select
R63 Pin function select
R67 Pin function select
R57 Pin function select
R62 Pin function select

6.7. Oscillator Sources

A crystal oscillator is fitted on the board and used to supply the main/sub clock input to the Renesas microcontroller.
Table 6-10 details the oscillators that are fitted and alternative footprints provided on this board:

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.
Fitted
PIN 57 connected to ADPOT
PIN 57 connected to AN8 on JA5
UC_VCC supplies the reference
voltage for Analog section.
CON_VREF supplies the reference
voltage for Analog section.
Table 6-9: Analog configuration links
Fitted
PIN 76 connected to AN0 on JA1
PIN 76 connected to DA1 on JA1
PIN 74 connected to AN1 on JA
PIN 74 connected to DA0 on JA
PIN 46 connected to INT3n on JA1
PIN 46 connected to RXD1 on JA6
PIN 73 connected to AN2 on JA1
PIN 73 connected to CLK1 on JA6
Table 6-10: Pin function configuration links
Component
Crystal (X1) Fitted
Sub clock (X2) Fitted
Table 6-10: Oscillator Configuration
Option Link Settings
PIN 57 disconnected from ADPOT
PIN 57 disconnected from AN8
CON_VREF can be used to supply the
reference voltage for Analog section.
UC_VCC can be used to supply the
reference voltage for Analog section.
Option Link Settings
PIN 76 disconnected from on JA1
PIN 76 disconnected from DA1
PIN 74 disconnected from AN1 on JA
PIN 74 disconnected from DA0
PIN 46 disconnected from INT3n
PIN 46 disconnected from RXD1
PIN 73 disconnected from AN2
PIN 73 disconnected from CLK1
20 MHz (HC/49U package)
32.768 kHz (90SMX package)
11
Alternative (Removed)
Alternative (Removed)
Related To
R66
R36
R41
R40
Related To
R58
R49
R59
R56
R67
R63
R62
R57