Renesas R8C/11 Application Note page 5

Adjusting the Frequency of the High-speed On-chip Oscillator Using a Commercial Frequency
Declaring
Outline
Argument
Return Value
Function Description
Declaring
Outline
Argument
Return Value
Function Description
Declaring
Outline
Argument
Return Value
Function Description
Declaring
Outline
Argument
Return Value
Function Description
REJ05B0471-0100Z/Rev.1.00
void flash_close_ew1_mode(void)
EW1 mode exit
Argument Type
None
Return Value Type Value
None
Disables CPU rewrite mode (EW1 mode)
int flash_byte_write(unsigned char *address , unsigned char data)
Flash write
Argument Type
unsigned char *address
unsigned char data
Return Value Type Value
int chk_flash_status()
Writes 1-byte data (data) to the write address (*address)
int chk_flash_status(void)
Full status check
Argument Type
None
Return Value Type Value
int chk_flash_status()
Performs full status check and returns the flash rewrite status (terminated
normally, command sequence error, erase error, or programming error).
void int3_hz_in(void)
High-speed on-chip oscillator adjust (INT3 interrupt)
Argument Type
None
Return Value Type Value
None
Executes interrupt processing upon detecting a falling edge of the input signal to
______
the INT 3/TCIN pin. The high-speed on-chip oscillator is adjusted based on the
measured value of timer C.
July 2004
R8C/11, R8C/13 Group
Meaning
Meaning
Meaning
Write address
Write data
Meaning
Flash write status
Meaning
Meaning
Flash rewrite status
Meaning
Meaning
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