
ML62Q1000 Series User’s Manual
Appendix E. List of Notes
FEUL62Q1000
E-15
See Section 19.2.6 "CRC Data Register (CRCDATA)".
[ ] Write the CRCDATA register when CRCAEN bit of the CRC mode register (CRCMOD) is "0". Any
writing is ignored when the CRCAEN bit is "1".
See Section 19.2.7 "CRC Calculation Result Register (CRCRES)".
[ ] Write the CRCDATA register when CRCAEN bit of the CRC mode register (CRCMOD) is "0". Any
writing is ignored when the CRCAEN bit is "1".
See Section 19.2.8 "Automatic CRC Mode Register (CRCMOD)".
[ ] When the CPU operation mode is "Wait mode" and the PLL reference frequency is 24MHz, choose
12MHz or slower as the SYSTEMCLK before entering the HALT/HALT-H mode.
See Section 19.3.2.1 "Example of Use of Automatic CRC Calculation Mode".
[ ] To perform CRC calculation in the manual mode when automatic CRC calculation is not completed,
save the value in the CRCRES register before calculation. Once the CRC calculation in the manual
mode is completed, move the saved value back to the CRCRES register and set the CRCAEN bit to "1".
If entering the HALT/HALT-H mode then, the automatic CRC calculation can be restarted. The final
addresses at the end of the previous operation are stored in the CRCSAD and CRCSSEG registers. If
values in the RCSAD and CRCSSEG registers are overwritten with the CRCAEN bit set to "0", the
calculation works correctly.
[ ] When the CPU operation mode is "Wait mode" and the PLL reference frequency is 24MHz, choose
12MHz or slower for the SYSTEMCLK before entering the HALT/HALT-H mode.
Chapter 20 Analog Comparator
See Section 20.1.3 "List of Pins".
[ ] When using the analog comparator, write "0" to the target PnmIE bit and PnmOE bit of port n mode
registers (n=0 to 9, A, B
,
m=0 to 7) to set the general port to Hi-impedance, otherwise a shoot-through
current may flow.
[ ] An influence of the noise is reducible by preventing the switching of neighboring pins while reading the
COMP0D bit when the comparator enables.
See Section 20.2.3 "Comparator n Mode Register (CMPnMOD: n=0,1)".
[ ] In the STOP/STOP-D/HALT-H(*1) mode, no sampling is performed regardless of the values set in
CMPnCS1 bit and CMPnCS0 bit since the sampling clock stops. When choosing "with sampling" and
entering the STOP/STOP-D/HALT-H(*1), there is a time period (*2) in which interrupts gets disabled.
When entering to STOP/STOP-D/HALT-H(*1) mode, specify the analog comparator interrupt as "without
sampling". After returning from STOP/STOP-D/HALT-H(*1) mode, specify the CMPnCS1 bit and
CMPnCS0 bit as "with sampling" if needed. When returning from STOP/STOP-D/HALT-H(*1) mode, the
interrupt is disable until the sampling clock (LSCLK or HSCLK) starts to be supplied. The start-up time for
supplying clock is dependent of the clock or register settings. For details about it, see Table 4-5
"Wake-up Time from Standby Mode" in the Chapter 4 "Power Management".
*1
HALT-H in the case the high-speed clock is chosen
*2
When entering STOP/STOP-D/HALT-H
(*1)
mode: Max.30us
When entering STOP/STOP-D/HALT-H
(*1)
mode, the interrupts are disabled until the sampleing clock
(low-speed or high-speed clock) starts being supplied. The delay time depens on the configuration of
clock and registers. See Table 4-5 "Wake-up Time from Standby Mode" in the Chapter 4 "Power
Management".
[ ] When the HSCLK is chosen and ENOSC bit of FCON register is "0", the sampling function is not
available.
[ ] When the HSCLK is chosen for the sampling block and the high-speed clock is not oscillating, the
sampling circuit does not work. Enable the high-speed clock oscillation in advance if sampling with the
HSCLK. For how to enable the high-speed clock oscillation, see Chapter 6 "Clock Generation Circuit".
[ ] Write CMPnMOD register when the comparator stops (CMPnEN bit of CMPnCON register is "0"),
otherwise the comparison result is unguaranteed.
[ ] The internal reference voltage controlled by CMPnVREF bit is for the comparator. See the chapter of
"Successive Approximation type A/D Converter" for the reference voltage used in the A/D converter.
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...