
ML62Q1000 Series User’s Manual
Appendix E. List of Notes
FEUL62Q1000
E-1
Appendix E.
List of Notes
This Check List has important notes to prevent commonly-made programming mistakes and frequently overlooked or
misunderstood hardware specifications of the LSI. Check each note listed in chapter by chapter when coding or
evaluating the program.
Common to all Chapters
[ ] Word access is available for registers with the word symbol. Specify an odd address for the word
access. See "List of Registers" in each chapter.
[ ] Registers for unequipped channels are not available to use. They return 0x0000 for reading. See "List of
Registers" in each chapter.
Chapter 1 Overview
See Section 1.3.4 "TERMINATION OF UNUSED PINS".
[ ] For unused input ports or unused input/output ports, if an unstable middle level voltage is supplied to the
corresponding pins that are configured as inputs without pull-up register or input/output mode, the
shoot-through current may become excessively large. Please follow handling the pins shown in the Table
1-11.
Chapter 2 CPU and Memory Space
See Section 2.3.2 "List of Coprocessor General-purpose Registers".
[ ] Registers CR10 to CR14 have no function. Reading them returns "0x00". These registers are not
writable. See Section 2.3.2.1 "A, B, C, D Registers (CR0 to CR7)".
[ ]
"-" indicates that the previous value is retained.
[ ]
In a signed operation, each of the most significant bits of input and output is a sign.
See Section 2.5 "Program Memory Space".
[ ] The Code Option area (64 bytes) is not available for the program code area. For details of Code Option
Settings, see Chapter 26 "Code Option" and make sure the setting data is correct.
[ ] It is recommended to fill unused areas with data "0xFFFF" (BRK instruction) in the program memory
space to ensure failsafe using HTU8 (program development aid software). See "HTU8 User's Manual"
for details on how to use HTU8. See "nX-U16/100 Core Instruction Manual" for details of the BRK
instruction.
[ ] Do not read or program unused areas to prevent the CPU works incorrectly.
See Section 2.6 "Data Memory Space".
[ ] The contents of the RAM area are undefined at power-on and system reset. Initialize this area by the
software.
[ ] The 1K byte (512 word) of Test area includes device-specific data, are unavailable to use as the
program code area.
[ ] Do not read/write unused areas to prevent the CPU works incorrectly.
[ ] The segment 0 of program memory space and the segment of data memory space are in different
space, but the segment 0 of program memory space is readable through the ROM window area of the
data memory space.
[ ] The segment 8 and 9 is mirror area of segment 0 and 1 in the program memory space. The contents of
Segment 0 of the program memory space is readable from the ROM reference area of Segment 8. The
contents of Segment 1 of the program memory space is readable from the ROM reference area of
Segment 9.
See Section 2.7.2 "Data Segment Register (DSR)".
[ ] Reading the content in unused areas of data segments 16 to 30 returns "0xFF".
[ ] Reading the content in unused areas of data segment 31 (data flash) returns "0x00".
See Section 2.8.2 "Software Remap".
[ ] If the entire LSI is reset through RESET_N terminal reset, etc., the remapping function is disabled as the
REMAPADD register is restored with the initial value.
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...