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MC56F844XX Datasheet(PDF) 7 Page - Freescale Semiconductor, Inc |
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MC56F844XX Datasheet(HTML) 7 Page - Freescale Semiconductor, Inc |
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7 / 67 page  • Up to 16 KW FlexNVM, which can be used as additional program or data flash memory • Up to 1 KW FlexRAM, which can be configured as enhanced EEPROM (used in conjunction with FlexNVM) or used as additional RAM 1.5 Interrupt Controller • Five interrupt priority levels • Three user programmable priority levels for each interrupt source: level 0, 1, 2 • Unmaskable level 3 interrupts include: illegal instruction, hardware stack overflow, misaligned data access, SWI3 instruction • Maskable level 3 interrupts include: EOnCE step counter, EOnCE breakpoint unit, EOnCE trace buffer • Lowest-priority software interrupt: level LP • Support for nested interrupt: higher priority level interrupt request can interrupt lower priority interrupt subroutine • Masking of interrupt priority level managed by the 56800EX core • Two programmable fast interrupts that can be assigned to any interrupt source • Notification to System Integration Module (SIM) to restart clock when in wait and stop states • Ability to relocate interrupt vector table Peripheral highlights 1.6.1 Enhanced Flex Pulse Width Modulator (eFlexPWM) • Up to 12 output channels in each module • 16 bits of resolution for center, edge aligned, and asymmetrical PWMs • PWMA with accumulative fractional clock calculation • Accumulative fractional clock calculation improves the resolution of the PWM period and edge placement • Arbitrary PWM edge placement • Equivalent to 312 ps PWM frequency and duty-cycle resolution on average • Each complementary pair can operate with its own PWM frequency base and deadtime values • 4 time base in each PWM module • Independent top and bottom deadtime insertion for each complementary pair • PWM outputs can operate as complementary pairs or independent channels • Independent control of both edges of each PWM output 1.6 Peripheral highlights MC56F844xx Advance Information Data Sheet, Rev. 2, 06/2012. Freescale Semiconductor, Inc. Preliminary 7 General Business Information |
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