S12 Clock, Reset and Power Management Unit (S12CPMU_UHV_V8)
MC9S12VRP Family Reference Manual Rev. 1.3
NXP Semiconductors
137
4.3.2.14
Low Voltage Control Register (CPMULVCTL)
The CPMULVCTL register allows the configuration of the low-voltage detect features.
Read: Anytime
Write: LVIE and LVIF are write anytime, LVDS is read only
0x02F1
7
6
5
4
3
2
1
0
R
0
0
0
0
0
LVDS
LVIE
LVIF
W
Reset
0
0
0
0
0
U
0
U
The Reset state of LVDS and LVIF depends on the external supplied VDDA level
= Unimplemented or Reserved
Figure 4-18. Low Voltage Control Register (CPMULVCTL)
Table 4-17. CPMULVCTL Field Descriptions
Field
Description
2
LVDS
Low-Voltage Detect Status Bit
— This read-only status bit reflects the voltage level on VDDA.Writes have no
effect.
0 Input voltage VDDA is above level V
LVID
or RPM.
1 Input voltage VDDA is below level V
LVIA
and FPM.
1
LVIE
Low-Voltage Interrupt Enable Bit
0 Interrupt request is disabled.
1 Interrupt will be requested whenever LVIF is set.
0
LVIF
Low-Voltage Interrupt Flag
— LVIF is set to 1 when LVDS status bit changes. This flag can only be cleared by
writing a 1.Writing a 0 has no effect. If enabled (LVIE = 1), LVIF causes an interrupt request.
0 No change in LVDS bit.
1 LVDS bit has changed.
Summary of Contents for MC9S12VRP64
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Page 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
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Page 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
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Page 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Page 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
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