S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 821
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S912XET512J3VALR
Manufacturer Part Number
S912XET512J3VALR
Description
16-bit Microcontrollers - MCU 16 BIT,512K FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XET512J3VALR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12XE
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
512 KB
Data Ram Size
32 KB
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
LQFP-112
Mounting Style
SMD/SMT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XET512J3VALR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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23.3.2.2
The VREGCTRL register allows the configuration of the VREG_3V3 low-voltage detect features.
Freescale Semiconductor
0x02F1
Reserved
Reset
HTEN
HTDS
VSEL
Field
HTIE
HTIF
VAE
7, 6
5
4
3
2
1
0
W
R
These reserved bits are used for test purposes and writable only in special modes.
They must remain clear for correct temperature sensor operation.
Voltage Access Select Bit — If set, the bandgap reference voltage V
multiplexed to an internal Analog to Digital Converter channel). The internal access must be enabled by bit VAE.
See device level specification for connectivity.
0 An internal temperature proportional voltage V
1 Bandgap reference voltage V
Voltage Access Enable Bit — If set, the voltage selected by bit VSEL can be accessed internally (i.e.
multiplexed to an internal Analog to Digital Converter channel). See device level specification for connectivity.
0 Voltage selected by VSEL can not be accessed internally (i.e. External analog input is connected to Analog
1 Voltage selected by VSEL can be accessed internally.
High Temperature Enable Bit — If set the temperature sense is enabled.
0 The temperature sense is disabled.
1 The temperature sense is enabled.
High Temperature Detect Status Bit —
This read-only status bit reflects the temperature status. Writes have no effect.
0 Temperature T
1 Temperature 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.
Note: On entering the reduced power mode the HTIF is not cleared by the VREG.
Control Register (VREGCTRL)
0
0
7
to Digital Converter channel).
= Unimplemented or Reserved
0
0
6
DIE
DIE
is below level T
is above level T
Figure 23-3. Control Register (VREGCTRL)
MC9S12XE-Family Reference Manual Rev. 1.25
Table 23-3. VREGHTCL Field Descriptions
0
0
5
BG
can be accessed internally if VAE is set.
HTID
HTIA
or RPM or Shutdown Mode.
and FPM.
0
0
4
Description
HT
can be accessed internally if VAE is set.
0
0
3
Chapter 23 Voltage Regulator (S12VREGL3V3V1)
BG
LVDS
can be accessed internally (i.e.
0
2
LVIE
0
1
LVIF
0
0
821
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