Chapter 7 S12 Clock, Reset and Power Management Unit (S12CPMU_UHV_V5)
S12ZVHY/S12ZVHL Family Reference Manual, Rev. 1.05
Freescale Semiconductor
277
7.3.2.25
Voltage Regulator Control Register (CPMUVREGCTL)
The CPMUVREGCTL allows to enable or disable certain parts of the voltage regulator.This register must
be configured after system startup.
Read: Anytime
Write: Once in normal modes, anytime in special modes
Module Base + 0x001D
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
EXTXON
INTXON
W
Reset
0
0
0
0
0
0
1
1
= Unimplemented or Reserved
Figure 7-34. Voltage Regulator Control Register (CPMUVREGCTL)
Table 7-30. Effects of writing the EXTXON and INTXON bits
value of
EXTXON
to be written
value of
INTXON
to be written
Write Access
0
0
blocked, no effect
0
1
legal access
1
0
legal access
1
1
blocked, no effect
Table 7-31. CPMUVREGCTL Field Descriptions
Field
Description
1
EXTXON
External voltage regulator Enable Bit for VDDX domain
— Should be set to 1 if external BJT is present on
the PCB, cleared otherwise.
0 VDDX control loop does not use external BJT
1 VDDX control loop uses external BJT
0
INTXON
Internal voltage regulator Enable Bit for VDDX domain
— Should be set to 1 if no external BJT is present on
the PCB, cleared otherwise.
0 VDDX control loop does not use internal power transistor
1 VDDX control loop uses internal power transistor
Содержание MC9S12ZVHL32
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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...
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