In a bold move to make 8-bit architectures obsolete, the folks at NXP Semiconductors have just announced the LPC800 – a 32-bit microcontroller designed specifically for the 8-bit world.
Available in low-pin-count packages, the LPC800 offers easy-to-use peripherals addressing 8-bit application requirements while providing the 32-bit capabilities and exceptional power efficiency of the ARM Cortex-M0+ processor.
Introducing a new level of flexibility without adding complexity, the LPC800 includes game-changing features such as a flexible switch matrix that enables designers to assign on-chip peripherals to any pin with a single line of code or a single click in the configuration tool. The LPC800 was unveiled at Electronica 2012 in Munich, Germany – check out the following overview video:
“Over the last several decades, 8-bit MCUs have excelled at simple tasks, providing reliable, deterministic performance. With the LPC800, we have designed a 32-bit microcontroller from the ground up to offer true 8-bit simplicity and real-time performance, along with unprecedented design flexibility. And with its breakthrough price point, the LPC800 family is driving to the heart of the low-cost, high-volume 8-bit world,” said Jim Trent, vice president and general manager, microcontroller business line, NXP Semiconductors.
8-bit simplicity: Scalable, efficient, and easy-to-use NXP has re-designed the LPC800 serial peripherals to be as lean as possible, making them more responsive and efficient. For example, the new SPI can operate as a slave at frequencies independent of the processor clock, solving the common frustration of having to over-sample 4-to-n times the SPI just to receive data. This decoupling of the SPI and processor clock speed reduces power and simplifies the system design. The I2C has also been re-engineered to allow the LPC800 to lie and wait at near-zero power consumption, even without a system clock, and wake up upon an address match.
To match the innovation in hardware, the LPC800 provides simple, driver-free operations. Low-level drivers for I2C and UART no longer take up Flash space and only simple API calls are required to operate these peripherals. Similarly, power management is simplified to a single API call. The LPC800 uses 64-byte page Flash, simplifying code management, and can be used to emulate EEPROM for data storage.
The LPC800 is available in a range of low-pin-count packages, including SO20, TSSOP20, TSSOP16 and DIP8. Popular with 8-bit developers, these packages help to streamline prototyping, ease of assembly, and simplify high-volume, low-cost manufacturing. Further, the LPC800 TSSOP packages are designed for scalability by mapping power, ground and analog functions to identical locations so designers can move from TSSOP16 to TSSOP20 packages with minimal effort.
32-Bit Versatility: Cortex-M0+, the most energy-efficient ARM processor Based on an ultra-low-power 30-MHz ARM Cortex-M0+ processor, the LPC800 is fully compatible with the Cortex-M architecture and instruction set, and offers superior code density to 8/16-bit architectures. The Cortex-M0+ features a two-stage pipeline that reduces power consumption while improving performance. In addition, the LPC800 takes advantage of the Cortex-M0+ peripheral bus allowing single-cycle access to the GPIOs. These features enable the LPC800 to offer deterministic, real-time performance – a key requirement for 8-bit developers.
Game-changing peripherals: Flexible switch matrix and state configurable timer The LPC800 includes two innovative features that provide 8-bit developers with a new level of flexibility and control via GUI-based configuration tools. The flexible switch matrix enables designers to assign on-chip peripheral I/O to nearly any pin. By helping to ease PCB routing congestion, the switch matrix contributes to lower-cost PCBs. A video demo showing how the flexible switch matrix works is presented below:
Another important peripheral on the LPC800 is the state configurable timer (SCT), which can be customized to meet the user’s specific application requirements. The basic SCT configuration is simply two 16-bit PWMs that have 4 capture inputs and 4 match outputs where each of the match registers are shadowed. The LPC800 can deliver virtually any timing or PWM function found on popular 8-bit MCUs. To add flexibility, the SCT in the LPC800 combines the ideas of states and events, allowing users to create sophisticated counting, output, input and control functions for lighting, power and other customized applications – without the constraints imposed by fixed functions.
Other LPC800 peripherals include an analog comparator, which is available with an external voltage reference for accurate measurement; a 4-channel multi-rate timer; a wake-up timer; and up to 18 GPIOs. The LPC800 is available with up to 16 KB of Flash and up to 4 KB of SRAM, and can be used with a 3.3VDD power supply (1.8V to 3.6V).
Tools, pricing, and availability The LPC800 is the latest member of NXP’s LPC Go family of entry-level low-power microcontrollers, including the popular LPC1100 series based on the Cortex-M0 processor. LPCXpresso, the full-featured IDE-based software development tool, supports the complete product design cycle for the LPC800, further easing the transition to 32-bit architectures. The LPC800 is also fully supported by the ARM Keil Microcontroller Development Kit. Additional support, free tools, and sample code are available from the extensive LPC developer community.
Pricing for the LPC810 starts at $0.39 USD. LPC800 evaluation kits are now available for ordering from Mouser Electronics. Qualification samples will be available starting in December, with final product availability starting in February 2013. A preview of the LPCXpresso development board for the LPC800 is shown below:
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I clicked on the Mouser link above to get info on the LPC Xpresso development board. They have a price of $15 for the board, but no information other than the CPU data sheet.
Apparently the Dev Board is still vaporware.
This happens a lot and makes me mad. How would anyone buy something with no info? If there was a datasheet and the board was something I could use, I probably would have bought one on the spot.
Now I will probaly never go back to check and NXP has lost a potential sale.
Will they never learn?
I think the big thing here is that the 32-bit architecture of the Cortex-M0 is so much simpler that the old 8-bit architectures for things like addressing and accessing different types of memory and suchlike...
Very interesting development. Watch out, might be a 'Microchip killer', the same way as ARM is going to kill Intel within 5 years from now with their 64bits beast.... Just my 5 cents, share your penny in stocks if I was right, okay? ;-)
I just disappointed that the goofy thing isn't available yet. I put one on order but don't know when I'll get it. Maybe it will be a Christmas present for me.
I think there are a lot more factors than just cost keeping 8-bitters around. Small packages that don't require a robot to handle are pretty important for a lot of applications so I'm glad to see that.really glad to see an eight pin package. Native 5 volt support will keep 8-bit MCUs selling. The complexity of the development environment is pretty key too. I hope the ROM based drivers help with that.
The ability to relocate your peripherals to just about any pin will make layout a lot easier. It seems like with every layout I do, there are two signals in the absolute least convenient pins.
January 2016 Cartoon Caption ContestBob's punishment for missing his deadline was to be tied to his chair tantalizingly close to a disconnected cable, with one hand superglued to his desk and another to his chin, while the pages from his wall calendar were slowly torn away.122 comments