
ML62Q1000 Series User's Manual
Chapter 26 Code Option
FEUL62Q1000
26-1
26. Code Option
26.1 General Description
The code option is used to choose the CPU operating mode, PLL reference frequency, watchdog timer operation clock,
etc. depending on values written in the code option area of the program memory space.
The hardware automatically refers to data in the code option area when the microcontroller starts up due to one of system
resets described below to set each function.
• Power-on detection reset
• VLS (Voltage Level Supervisor) reset
• RESET_N input pin reset
• Watchdog timer (WDT) overflow reset
• Watchdog timer (WDT) invalid clear reset
• RAM parity error reset
• Unused ROM area access reset
The code option area can be erased or programmed through the on-chip debug function, self-rewrite function of flash
memory, or ISP function.
Figure 26-1 Code Option Overview
26.1.1 Function List
The following choices are available by the code option.
Ÿ
Enabling or disabling the unused ROM area access reset
Ÿ
Enabling or disabling the remapping function
Ÿ
Watchdog timer operation clock (low-speed oscillation LSCLK/WDT oscillation)
Ÿ
Enabling or disabling the watchdog timer operation
Ÿ
PLL reference frequency (16 MHz or 24 MHz)
Ÿ
CPU operation mode (wait mode or no-wait mode)
Ÿ
The software remap or hardware remap is selectable for the remap function
WDT clock
Updated at power-on detection reset,
or any other system reset
Code option setting circuit
CPU operation mode
No-wait mode
PLL=16MHz
WDT=Low-speed
RC oscillation
and etc.
Code option area
64 bytes
Program
code area
0H
Others
Peripheral
circuits,
control circuits
Содержание ML62Q1000 Series
Страница 17: ...Chapter 1 Overview...
Страница 112: ...Chapter 2 CPU and Memory Space...
Страница 154: ...Chapter 3 Reset Function...
Страница 166: ...Chapter 4 Power Management...
Страница 196: ...Chapter 5 Interrupts...
Страница 248: ...Chapter 6 Clock generation Circuit...
Страница 274: ...Chapter 7 Low Speed Time Base Counter...
Страница 291: ...Chapter 8 16 Bit Timer...
Страница 320: ...Chapter 9 Functional Timer FTM...
Страница 382: ...Chapter 10 Watchdog Timer...
Страница 402: ...Chapter 11 Serial Communication Unit...
Страница 456: ...Chapter 12 I2 C Bus Unit...
Страница 491: ...Chapter 13 I2 C Master...
Страница 512: ...Chapter 14 DMA Controller...
Страница 531: ...Chapter 15 Buzzer...
Страница 550: ...Chapter 16 Simplified RTC...
Страница 559: ...Chapter 17 GPIO...
Страница 594: ...Chapter 18 External Interrupt Function...
Страница 612: ...Chapter 19 CRC Generator...
Страница 632: ...Chapter 20 Analog Comparator...
Страница 644: ...Chapter 21 D A Converter...
Страница 655: ...Chapter 22 Voltage Level Supervisor...
Страница 676: ...Chapter 23 Successive Approximation Type A D Converter...
Страница 709: ...Chapter 24 Regulator...
Страница 714: ...Chapter 25 Flash Memory...
Страница 743: ...Chapter 26 Code Option...
Страница 750: ...Chapter 27 LCD Driver...
Страница 788: ...Chapter 28 On Chip Debug Function...
Страница 795: ...Chapter 29 Safety Function...
Страница 813: ...Appendix A...
Страница 881: ...Revision History...