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发表于 2014-6-13 11:10:20
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显示全部楼层
除了主频提高(180MHz),外设似乎没什么改变。
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ARM Cortex-M4 with FPU running at up to 180 MHz
System
- System integration module
- Power management and mode controllers
- Multiple power modes available based on high speed run, run, wait, stop, and power-down modes
- Low-leakage wakeup unit
- Miscellaneous control module
- Crossbar switch
- Memory protection unit
- Peripheral bridge
- Direct memory access (DMA) controller with multiplexer
- External watchdog monitor
- Watchdog
Clocks
- Multiple clock generation options
- System oscillator to provide clock source for the MCU
- RTC oscillator to provide clock source for the RTC
- Crystal-less USB internal clock for USB device operation.
Security
- Cyclic Redundancy Check module for error detection
- Hardware encryption, along with a random number generator
Analog
- High speed analog-to-digital converter
- Comparator
- Digital-to-analog converter
- Internal voltage reference
- Bandgap voltage reference
Timers
- Programmable delay block
- FlexTimers
- Low Power Timer/PWM
- Periodic interrupt timer
- Low power timer
- Carrier modulator transmitter
- Independent real time clock
Communications
- Ethernet MAC with IEEE 1588 capability
- USB OTG controller (USB0) with built-in FS/LS transceiver
- USB device charger detect
- USB voltage regulator
- HS USB OTG controller (USB1) with built-in HS/FS/LS physical layer
- CAN
- Serial peripheral interface
- Inter-integrated circuit (I2C)
- UART
- Secured Digital host controller
- Integrated interchip sound (I2S)
Human-Machine Interfaces (HMI)
- General purpose input/output controller
- Capacitive touch sense input interface enabled in hardware
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