With the addition of the 9S08QE32/16, the QE
family of microcontrollers in now complete.
Achieving raw performance is no longer the number
one issue - it’s now “performance within an
energy budget.” Freescale understands this
challenge and offers a wide portfolio of S08
devices that help you reach target performance
levels while minimizing low-power in your design.
The QE family demonstrates extreme energy
efficiency for ultra long operating life in battery-powered
applications.
The QE32 provides great flexibility for customers
to balance performance and power consumption.
The QE32 offers low-power features such as
two ultra low-power stop modes, low-power
run and wait modes, 6µsec wake-up time, ultra
low-power external oscillator and clock gating
registers to disable clocks to unused peripherals.
| FEATURES |
BENEFITS |
- Two ultra-low-power stop modes, one of which allows limited use of peripherals
- Low-power run and wait modes
- 6µs typical wake up time from stop mode
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- Allows continued application sampling in a reduced power state which extends battery life
- Allows use of all chip peripherals in a low-power state
- Enables faster execution out of stop modes
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- Internal clock Source (ICS) - module containing a frequency locked-loop (FLL) controlled by internal or external reference
- Oscillator (OSC) - loop-control Pierce oscillator; crystal or ceramic resonator range of 31.25kHz to 38.4kHz or 1MHz to 16MHz
|
- Provides choice of frequencies on-the-fly. Reducing frequency saves current.
- Includes ultra-low-power OSC for accurate time base in low-power modes
|
- Clock gating disables clocks to unused peripherals
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- Provides flexibility to turn off individual modules
- Reduces power consumption
|
| 8-bit HCS08 Central Processing Unit (CPU) |
- Up to 50.33MHz HCS08 CPU at 3.6V to 2.4V, 40MHz CPU at 2.4V to 2.1V and 20MHz CPU at 2.1V to 1.8V across temperature range of -40°C to +85°C
|
- Offers high performance, even at low voltage levels for battery-operated applications
- Provides bus speed operation from 10MHz to 25.165MHz under voltage from 1.8V to 3.6V
|
- HCS08 instruction set with added BGND instruction
|
- Easy to learn and use architecture
- Backward object code compatibility with 68HC08 and 68HC05 for reuse of existing libraries can still be used
- Allows for efficient, compact module coding in assembly or C compiler
- BGND allows user to enter background debug mode that takes advantage of on-chip in-circuit emulator (ICE)
|
| On-Chip Memory |
- Up to 32kB Flash read/program/erase over full operating voltage and temperature
|
- Allows user to take full advantage of in-application, re-programmability benefits in virtually any environment
|
- Up to range of 1.8V to 3.6V RAM
|
- Security circuitry prevents unauthorized access to RAM and Flash contents to reduce system power consumption
|
| Peripherals |
- Analog-to-digital converter (ADC)—10-channel, 12-bit resolution; 2.5µs conversion time; automatic compare function; internal temperature sensor; internal bandgap reference channel; operation in stop mode
|
- Having 10 channels allows up to 10 analog devices to be sampled at extremely high speeds
- Accuracy and full functionality guaranteed across 1.8V to 3.6V operating voltage of the MCU
|
- Timer - One 6-channel (TPM3) and two 3-channel (TPM1 and TPM2); selectable input capture, output compare, or buffered edge- or center-aligned PWM on each channel
|
- Three TPMs allow for three different time bases, with a total of twelve timer channels
|
- 2 x Serial Communications Interface (SCI) - Two SCI interface modules with optional 13-bit break; offer LIN master/slave extended break generation
|
- Have two SCI allows two separate dedicated devices
- Allows full-duplex, asynchronous, NRZ serial communication between MCU and remote devices
- Edge interrupt can wake up MCU from low-power mode
|
- Two analog comparators with option to compare to an internal reference - output can be optionally routed to timer/pulse width modulator (PWM) as input capture trigger
|
- Requires only single pin for input signal, freeing additional pins for other use
- Allows other components in system to see result of comparator with minimal delay
- Can be used for single slope ADC and RC time constant measurements
|
- Serial Peripheral Interface (SPI) - one module with full-duplex or single-wire bidirectional; double-buffered transmit and receive; master or slave mode; MSB-first or LSB-first shifting
|
- Allows high-speed (up to 5Mbps) communications to other MCUs or peripherals such as MC1319x RF transceivers
|
- I2C with up to 100kbps with maximum bus loading; multi-master operation; programmable slave address; interrupt-driven byte-by-byte data transfer; supports broadcast mode and 10-bit addressing
|
- I2C port enables increased system memory by using an additional I2C EEPROM. This also creates an opportunity to add an additional I2C device.
|
| Input/Output |
- 40 General Purpose Input/Output (GPIO), including one input-only and one output-only pin
|
- Results in large number of flexible I/O pins that allow developers to easily interface a device into their own designs
|
- 16 Keyboard Interrupts (KBI) pins with selectable polarity
|
- Can be used for reading input from a keypad or used as general pin interrupts
|
| System Protection |
- Watchdog computer operating properly (COP) reset with option to run from dedicated 1kHz internal clock source or bus clock
|
- Allows device to recognize runaway code (infinite loops) and resets processor to avoid lock-up states
|
- Low-voltage detection with reset or interrupt; selectable trip points
|
- Alarms the developer of voltage drops outside of the typical operating range
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- Illegal op code and illegal address detection with reset
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- Allows the device to recognize erroneous code and resets the processor to avoid lock-up states
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- Prevents unintentional programming of protected Flash memory, which greatly reduces the chance of losing vital system code for vendor applications
|
| Development Support |
- Single-wire background debug interface
|
- Allows developers to use the same hardware cables between S08 and V1 ColdFire® platforms
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- Allows single breakpoint setting during in-circuit debugging (plus three more breakpoints in on-chip debug module)
|
- ICE debug module containing three comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow addresses and event-only data - debug module supports both tag and force breakpoints.
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- Provides built-in full emulation without expense of traditional emulator
|
Complimentary** Special Edition CodeWarrior Development Studio for Microcontrollers is a single tool suite that supports software development for Freescale’s 8- and 32-bit V1 ColdFire microcontrollers. Designers can further accelerate application development with the help of Processor Expert™, an award-winning rapid application development tool integrated into the CodeWarrior tool suite.
The DEMO9S08QE32 is a low-cost development system designed for demonstrating, evaluating, and debugging the Freescale MC9S08QE32 microcontroller.
P&E’s Embedded Multilink circuitry on the DEMO9S08QE32 board allows the processor to be debugged and programmed via USB from the PC. In addition, the demo board can be powered using the USB bus.
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