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Chapter 7. Modes
The RSK supports Boot mode and Single chip mode.
Details of programming the FLASH memory is described in the M16C/6NK Group Hardware Manual.
7.1. Boot mode
The boot mode settings for this RSK are shown in Table 7-1: Boot Mode pin settings below:
CNVSS P5.0 P5.5
LSI State after Reset
End
1 1 0
Boot Mode
Table 7-1: Boot Mode pin settings
The software supplied with this RSK only supports Boot mode using an E8a and HEW. However, hardware exists to enter boot mode
manually, do not connect the E8a in this case. Press and hold the SW1/BOOT. The mode pins above are held in their boot states while
reset is pressed and released. Release the boot button. The BOOT LED will be illuminated to indicate that the microcontroller is in boot
mode.
When neither the E8a is connected nor the board is placed in boot mode (with CNVSS and P5.5 being pulled low during reset) as above,
the P5.5 pin is pulled high by a 10k resistor, the P.5.0 pin is pulled high by a 100k resistor and the CNVSS is pulled low by a 100k resistor.
When an E8a is used these three pins are controlled by the E8a.
7.2. Single chip mode
This RSK is configured to always boot in Single Chip mode when the E8a is not connected and the boot switch is not depressed as CNVSS
is pulled down by a 100k resistor. Refer to M16C/6NK Group Hardware Manual for details of Single chip mode.
CNVSS P5.0 P5.5
LSI State after Reset
End
0 1 1
Single Chip Mode
Table 7-2: Single Chip Mode pin settings
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