Chapter 17 Stepper Stall Detector (SSDV2) Block Description
S12ZVHY/S12ZVHL Family Reference Manual Rev. 1.05
Freescale Semiconductor
625
17.3.2.1
Return-to-Zero Control Register (RTZCTL)
Read: anytime
Write: anytime
Module Base + 0x0000
7
6
5
4
3
2
1
0
R
ITG
DCOIL
RCIR
POL
0
0
STEP
W
Reset
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 17-2. Return-to-Zero Control Register (RTZCTL)
Table 17-4. RTZCTL Field Descriptions
Field
Description
7
ITG
Integration
— During return to zero (RTZE = 1), one of the coils must be recirculated or non-driven determined
by the STEP field. If the ITG bit is set, the coil is non-driven, and if the ITG bit is clear, the coil is being recirculated.
shows the condition state of each transistor from
based on the STEP, ITG, DCOIL and
RCIR bits.
Regardless of the RTZE bit value, if the ITG bit is set, one end of the non-driven coil connects to the (non-zero)
reference input and the other end connects to the integrator input of the sigma-delta converter. Regardless of the
RTZE bit value, if the ITG bit is clear, the non-driven coil is in a blanking state, the converter is in a reset state,
and the accumulator is initialized to zero.
shows the condition state of each switch from
based on the ITG, STEP and POL bits.
0 Blanking
1 Integration
6
DCOIL
Drive Coil
— During return to zero (RTZE=1), one of the coils must be driven determined by the STEP field. If
the DCOIL bit is set, this coil is driven. If the DCOIL bit is clear, this coil is disconnected or drivers turned off.
shows the condition state of each transistor from
based on the STEP, ITG, DCOIL and
RCIR bits.
0 Disconnect Coil
1 Drive Coil
5
RCIR
Recirculation in Blanking Mode
— During return to zero (RTZE = 1), one of the coils is recirculated prior to
integration during the blanking period. This bit determines if the coil is recirculated via VDDM or via VSSM.
shows the condition state of each transistor from
based on the STEP, ITG, DCOIL and
RCIR bits.
0 Recirculation on the high side transistors
1 Recirculation on the low side transistors
4
POL
Polarity
— This bit determines which end of the non-driven coil is routed to the sigma-delta converter during
conversion or integration mode.
shows the condition state of each switch from
based on
the ITG, STEP and POL bits.
1:0
STEP
Full Step State
— This field indicates one of the four possible full step states. Step 0 is considered the east pole
or 0
angle, step 1 is the north Pole or 90
angle, step 2 is the west pole or 180
angle, and step 3 is the south
pole or 270
angle. For each full step state,
shows the current through each of the two coils, and the
coil nodes that are multiplexed to the sigma-delta converter during conversion or integration mode.
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...