MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 248

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.38.3.2.8
This register selects the timeout period for the Real Time Interrupt.
The clock source for the RTI is either IRCCLK or OSCCLK depending on the setting of the RTIOSCSEL bit. In Stop Mode with
PSTP=1 (Pseudo Stop Mode) and RTIOSCSEL=1 the RTI continues to run, else the RTI counter halts in Stop Mode.
Read: Anytime
Write: Anytime
Freescale Semiconductor
0x003B
Reset
FM1, FM0
W
R
Field
5, 4
RTDEC
PLL Frequency Modulation Enable Bits — FM1 and FM0 enable frequency modulation on the VCOCLK. This is to reduce
noise emission. The modulation frequency is fref divided by 16. See
7
0
Write to this register clears the LOCK and UPOSC status bits.
Care should be taken to ensure that the bus frequency does not exceed the specified
maximum when frequency modulation is enabled.
The frequency modulation (FM1 and FM0) can not be used if the Adaptive Oscillator Filter
is enabled.
S12CPMU RTI Control Register (CPMURTI)
A write to this register starts the RTI timeout period. A change of the RTIOSCSEL bit (writing
a different value or loosing UPOSC status) restarts the RTI timeout period.
RTR6
6
0
Table 352. S12CPMU RTI Control Register (CPMURTI)
Table 350. CPMUPLL Field Descriptions
FM1
RTR5
0
0
1
1
MM912_634 Advance Information, Rev. 4.0
Table 351. FM Amplitude selection
5
0
RTR4
NOTE
NOTE
NOTE
NOTE
FM0
4
0
0
1
0
1
Description
RTR3
FM Amplitude /
f
VCO
3
0
Table 351
FM off
Variation
1%
2%
4%
for coding.
RTR2
2
0
RTR1
1
0
RTR0
0
0
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