Chapter 10 Analog-to-Digital Converter (ADC12B_LBA_V1)
S12ZVHY/S12ZVHL Family Reference Manual Rev. 1.05
402
Freescale Semiconductor
10.5.3.2.3
Introduction of the two Result Value Lists (RVLs)
The same list-based architecture as described above for the CSL has been implemented for the Result
Value List (RVL) with corresponding address registers (ADCRBP, ADCCROFF_0/1, ADCRIDX).
The final address for conversion result storage is calculated by the sum of these registers (e.g.:
ADCADCRIDX or ADCADCRIDX).
The RVL_BMOD bit selects if the RVL is used in double buffer or single buffer mode. In double buffer
mode the RVL is swapped:
•
Each time an “End Of List” command type got executed followed by the first conversion from top
of the next CSL and related (first) result is about to be stored
•
A CSL got aborted (bit SEQA=1’b1) and ADC enters idle state (becomes ready for new flow
control events)
Using the RVL in double buffer mode the RVL is not swapped after exit from Stop Mode or Wait Mode
with bit SWAI set. Hence the RVL used before entry of Stop or Wait Mode with bit SWAI set is overwritten
after exit from the MCU Operating Mode (see also
Section 10.2.1.2, “MCU Operating Modes
).
Which list is actively used for the ADC conversion result storage is indicated by bit RVL_SEL. The
register to define the RVL start addresses (ADCRBP) can be set to any even location of the system RAM
area. It is the user’s responsibility to make sure that the different ADC lists do not overlap or exceed the
system RAM area. The error flag IA_EIF will be set for accesses to ranges outside system RAM area and
cause an error interrupt if enabled.
Figure 10-33. Result Value List Schema in Double Buffer Mode
Memory Map
0x00_0000
Register Space
RAM Space
RAM start address
RAM end address
RVL_0
(active)
(ADCCROFF_0)
RVL_1
(alternative)
(ADCCROFF_1)
(ADC
(ADC
Scenario with: RVL_SEL = 1’b0
Memory Map
0x00_0000
Register Space
RAM Space
RAM start address
RAM end address
RVL_1
(active)
(ADCCROFF_0)
RVL_0
(alternative)
(ADCCROFF_1)
(ADC
(ADC
Scenario with: RVL_SEL = 1’b1
ADCRIDX(max))
ADCRIDX(max))
ADCRIDX(max))
ADCRIDX(max))
Note:
Address register names in () are not absolute addresses instead they are a sample offset or sample index
Содержание MC9S12ZVHL32
Страница 21: ...S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 21 PAGE INTENTIONALLY LEFT BLANK...
Страница 22: ...S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 22 Freescale Semiconductor PAGE INTENTIONALLY LEFT BLANK...
Страница 686: ...Chapter 20 ECC Generation module SRAM_ECCV1 S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 686 Freescale Semiconductor...
Страница 752: ...Chapter 22 Supply Voltage Sensor BATSV2 S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 752 Freescale Semiconductor...
Страница 774: ...Chapter 23 LIN Physical Layer S12LINPHYV2 S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 774 Freescale Semiconductor...
Страница 788: ...Appendix A MCU Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 788 Freescale Semiconductor...
Страница 794: ...Appendix B ADC Electricals S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 794 Freescale Semiconductor...
Страница 798: ...Appendix D IRC Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 798 Freescale Semiconductor...
Страница 802: ...Appendix F MSCAN Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 802 Freescale Semiconductor...
Страница 806: ...Appendix G NVM Electrical Parameters S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 806 Freescale Semiconductor...
Страница 810: ...Appendix H BATS Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 810 Freescale Semiconductor...
Страница 816: ...Appendix K OSC32K Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 816 Freescale Semiconductor...
Страница 822: ...Appendix L SPI Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 822 Freescale Semiconductor...
Страница 826: ...Appendix M LINPHY Electrical Specifications S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 826 Freescale Semiconductor...
Страница 829: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 830 Freescale Semiconductor O 1 144 LQFP...
Страница 830: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 831...
Страница 831: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 832 Freescale Semiconductor...
Страница 832: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 833 O 2 100 LQFP...
Страница 833: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 834 Freescale Semiconductor...
Страница 834: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 Freescale Semiconductor 835...
Страница 835: ...Appendix O Package Information S12ZVHY S12ZVHL Family Reference Manual Rev 1 05 836 Freescale Semiconductor...