S912XEP100J5MAG Freescale Semiconductor, S912XEP100J5MAG Datasheet - Page 492
S912XEP100J5MAG
Manufacturer Part Number
S912XEP100J5MAG
Description
MCU 64K FLASH 144-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S912XEP100J5MAG.pdf
(1328 pages)
Specifications of S912XEP100J5MAG
Core Processor
HCS12X
Core Size
16-Bit
Speed
50MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
119
Program Memory Size
1MB (1M x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 24x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
144-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Chapter 11 S12XE Clocks and Reset Generator (S12XECRGV1)
The Sequence for clock quality check is shown in
1. A Clock Monitor Reset will always set the SCME bit to logical’1’.
492
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
POR
LVR
Remember that in parallel to additional actions caused by Self Clock Mode
or Clock Monitor Reset
check the OSCCLK signal.
The Clock Quality Checker enables the IPLL and the voltage regulator
(VREG) anytime a clock check has to be performed. An ongoing clock
quality check could also cause a running IPLL (f
during Pseudo Stop Mode.
CHECK WINDOW
CLOCK OK
OSC OK
ACTIVE?
NUM = 50
SCM
?
YES
NO
FSTWKP=1
SCME=1 &
NO
?
EXIT FULL STOP
NO
YES
Figure 11-18. Sequence for Clock Quality Check
CM FAIL
MC9S12XE-Family Reference Manual , Rev. 1.23
YES
1
SWITCH TO OSCCLK
handling the clock quality checker continues to
NUM = NUM-1
NUM = 0
EXIT SCM
NUM > 0
?
YES
NOTE
NOTE
Figure
NO
CLOCK MONITOR RESET
11-18.
ENTER SCM
ENTER SCM
YES
SCM
) and an active VREG
SCME = 1
ACTIVE?
SCM
?
NO
YES
FSTWKP = 0
NO
YES
?
Freescale Semiconductor
NO
NUM = 0
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