
ML62Q1000 Series User’s Manual
Appendix E. List of Notes
FEUL62Q1000
E-17
See Section 23.2.5 "SA-ADC Upper/Lower Limit Status Register 1 (SADULS1)".
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Do not use bit access instructions and use word or byte access instructions for writing this register.
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When using the A/D conversion result upper/lower limit detect function (SALEN bit =1), the interrupt
can be cleared by clearing the corresponding bit of SAULS16 or by resetting the LSI.
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When performing the A/D conversion only one time (SALPEN bit =0), confirm the bit of SAULS16 is "0"
before setting SARUN bit to "1".
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When performing the consecutive scan A/D conversion (SALPEN bit =1), confirm the bit of SAULS16 is
"0", before the next A/D conversion ends.
See Section 23.2.6 "SA-ADC Mode Register (SADMOD)".
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Write "0" to the SADMODH[7:1] bits. The operation when "1" is written to the bits is unguaranteed.
See Section 23.2.7 "SA-ADC Control Register (SADCON)".
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Start the A/D conversion with one or more channels chosen by the SA-ADC enable registers (SADEN0
and SADEN1). If no channel is chosen, the operation does not start.
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Enter STOP/STOP-D mode after checking SARUN bit is "0", it does not enter the STOP/STOP-D
mode when the SARUN bit is "1".
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When SACK2 to 0 bits are set to 0x7, it takes max. 3 clocks of the low-speed clock(LSCLK) to start or
stop the A/D conversion after setting or resetting the SARUN bit.
See Section 23.2.8 "SA-ADC Enable Register 0 (SADEN0)".
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When multiple bits of SACHn (n=0 to 17) are set to "1", the A/D conversion starts in the order of
smaller channel number.
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Do not start the A/D conversion when the all bits of SACHn (n=0 to 17) are "0". In that case SARUN bit
of SADCON register does not get to "1".
See Section 23.2.9 "SA-ADC Enable Register 1 (SADEN1)".
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Channel 16 (SACH16) is used for adjusting frequency of the low-speed RC oscillation clock. When
using the channel 16 (SACH16), enable the internal reference voltage/temperature sensor and choose
the internal reference voltage by setting VREFCON register.
See Section 23.2.11 "SA-ADC Upper/Lower Limit Mode Register (SADLMOD)".
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The upper/lower limit detection function is available to make the interrupt request for the A/D
conversion result on all chosen channels.
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If the interrupt occurred by satisfying the upper/lower limit detection condition, check the SA-ADC
upper/lower status registers 0 and 1(SADULS0 and SADULS1) to see which channel of A/D conversion
result matched to the condition.
See Section 23.2.14 "SA-ADC Reference Voltage Control Register (VREFCON)".
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It takes 200us(Max.) until the internal reference voltage gets stable after setting VREFEN bit to "1".
Start the A/D conversion after waiting the stabilization time.
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The internal reference voltage(Approx. 1.55V) can be output to the general port(P23) by setting the
VREFEN bit to"1" and setting 0x70 to P2MOD3 register. However in that case, it is possible to get
incorrect A/D conversion results as affected by external factors.
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When using the external reference voltage input from VREF pin(P23), set VREFP1 bit to "0" and
VREFP0 bit to "1" and P2MOD3 register to 0x00.
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The internal reference voltage controlled by the VREFEN bit is for the A/D converter. See the chapter
of "Analog Comparator" for the reference voltage used in the analog comparator.
See Section 23.2.15 "SA-ADC Interrupt Mode Register (SADIMOD)".
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If SALEN bit of the SA-ADC upper/lower limit mode register (SADLMOD) is set to "1", the interrupt by
the upper/lower limit detection function gets enabled and the setting for the SADIMD bit of SA-ADC
Interrupt Mode Register (SADIMOD) gets invalid.
See Section 23.2.16 "SA-ADC Trigger Register (SADTRG)".
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When choosing the 16-bit Timer interrupts (TM0INT and TM1INT), set the THn8BM bit of the 16bit
Timer n Mode Register (TMHnMOD) to "0" to choose the 16bit timer mode.
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...