S12 Clock, Reset and Power Management Unit (S12CPMU_UHV_V8)
MC9S12VRP Family Reference Manual Rev. 1.3
108
NXP Semiconductors
4.1.1
Features
The Pierce Oscillator (XOSCLCP) contains circuitry to dynamically control current gain in the output
amplitude. This ensures a signal with low harmonic distortion, low power and good noise immunity.
•
Supports crystals or resonators from 4MHz to 20MHz.
•
High noise immunity due to input hysteresis and spike filtering.
•
Low RF emissions with peak-to-peak swing limited dynamically
•
Transconductance (gm) sized for optimum start-up margin for typical crystals
•
Dynamic gain control eliminates the need for external current limiting resistor
•
Integrated resistor eliminates the need for external bias resistor
•
Low power consumption: Operates from internal 1.8V (nominal) supply, Amplitude control limits
power
•
Optional oscillator clock monitor reset
•
Optional full swing mode for higher immunity against noise injection on the cost of higher power
consumption and increased emission
The Voltage Regulator (VREGAUTO) has the following features:
•
Input voltage range from 6 to 18V (nominal operating range)
•
Low-voltage detect (LVD) with low-voltage interrupt (LVI)
•
Power-on reset (POR)
•
Low-voltage reset (LVR)
•
On Chip Temperature Sensor and Bandgap Voltage measurement via internal ADC channel.
•
High temperature interrupt
•
Voltage Regulator providing Full Performance Mode (FPM) and Reduced Performance Mode
(RPM)
The Phase Locked Loop (PLL) has the following features:
•
Highly accurate and phase locked frequency multiplier
•
Configurable internal filter for best stability and lock time
•
Frequency modulation for defined jitter and reduced emission
•
Automatic frequency lock detector
•
Interrupt request on entry or exit from locked condition
•
Reference clock either external (crystal) or internal square wave (1MHz IRC1M) based.
•
PLL clock monitor reset
•
PLL stability is sufficient for LIN communication in slave mode, even if using IRC1M as reference
clock
The Internal Reference Clock (IRC1M) has the following features:
•
Frequency trimming
(A factory trim value for 1MHz is loaded from Flash Memory into the IRCTRIM register after
reset, which can be overwritten by application if required)
Содержание MC9S12VRP64
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Страница 46: ...Device Overview S12VRP Series MC9S12VRP Family Reference Manual Rev 1 3 46 NXP Semiconductors ...
Страница 92: ...Port Integration Module S12VRPPIMV1 MC9S12VRP Family Reference Manual Rev 1 3 92 NXP Semiconductors ...
Страница 106: ...S12G Memory Map Controller S12GMMCV1 MC9S12VRP Family Reference Manual Rev 1 3 106 NXP Semiconductors ...
Страница 192: ...Background Debug Module S12SBDMV1 MC9S12VRP Family Reference Manual Rev 1 3 192 NXP Semiconductors ...
Страница 236: ...S12S Debug Module S12DBGV2 MC9S12VRP Family Reference Manual Rev 1 3 236 NXP Semiconductors ...
Страница 244: ...Interrupt Module S12SINTV1 MC9S12VRP Family Reference Manual Rev 1 3 244 NXP Semiconductors ...
Страница 340: ...Serial Communication Interface S12SCIV6 MC9S12VRP Family Reference Manual Rev 1 3 340 NXP Semiconductors ...
Страница 358: ...Timer Module TIM16B2CV3 MC9S12VRP Family Reference Manual Rev 1 3 358 NXP Semiconductors ...
Страница 424: ...LIN Physical Layer S12LINPHYV2 MC9S12VRP Family Reference Manual Rev 1 3 424 NXP Semiconductors ...
Страница 436: ...Supply Voltage Sensor BATSV2 MC9S12VRP Family Reference Manual Rev 1 3 436 NXP Semiconductors ...
Страница 488: ...64 KByte Flash Module S12FTMRG64K4KV2 MC9S12VRP Family Reference Manual Rev 1 3 488 NXP Semiconductors ...
Страница 528: ...NVM Electrical Parameters MC9S12VRP Family Reference Manual Rev 1 3 528 NXP Semiconductors ...
Страница 529: ...MC9S12VRP Family Reference Manual Rev 1 3 NXP Semiconductors 529 Appendix J Package Information ...
Страница 530: ...Package Information MC9S12VRP Family Reference Manual Rev 1 3 530 NXP Semiconductors ...
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