mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 146

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Clock, Reset and Power Management (S12CPMU_UHV)
146
HTDS
VSEL
Field
HTIE
HTIF
HTE
5
3
2
1
0
Voltage Access Select Bit — If set, the bandgap reference voltage V
multiplexed to an internal Analog to Digital Converter channel). If not set, the die temperature proportional
voltage V
For any of these access the HTE bit must be set.
0 An internal temperature proportional voltage V
1 Bandgap reference voltage V
High Temperature Sensor/Bandgap Voltage Enable Bit — This bit enables the high temperature sensor and
bandgap voltage amplifier.
0 The temperature sensor and bandgap voltage amplifier is disabled.
1 The temperature sensor and bandgap voltage amplifier is enabled.
High Temperature Detect Status Bit — This read-only status bit reflects the temperature status.Writes have
no effect.
0 Junction Temperature is below level T
1 Junction Temperature is above level T
High Temperature Interrupt Enable Bit
0 Interrupt request is disabled.
1 Interrupt will be requested whenever HTIF is set.
High Temperature Interrupt Flag — HTIF — High Temperature Interrupt Flag
HTIF is set to 1 when HTDS status bit changes.This flag can only be cleared by writing a 1.
Writing a 0 has no effect. If enabled (HTIE=1), HTIF causes an interrupt request.
0 No change in HTDS bit.
1 HTDS bit has changed.
V
Ref
BG
C
HTD
HT
of the temperature sensor can be accessed internally.See device level specification for connectivity.
Table 4-15. CPMUHTCTL Field Descriptions
MC9S12VR Family Reference Manual,
Preliminary - Subject to Change Without Notice
Figure 4-17. Voltage Access Select
VSEL
BG
can be accessed internally.
HTID
HTIA
TEMPSENSE
or RPM.
and FPM.
Description
HT
can be accessed internally.
Rev. 2.2
Channel
ATD
BG
can be accessed internally (i.e.
Freescale Semiconductor