ARM chip with LPC interface support

[plazma]

I tried googling around but did not find any. Are there ARM or other microcontroller chips with LPC (Low Pin Count) interface support?

[MosherIV]

Hi

If by Low Pin Count you mean this :
https://en.wikipedia.org/wiki/Low_Pin_Count

I do not think so.

I think you do not understand ARM target markets. Broadly speaking ARM now have 2 product family lines :
Cortex A
Cortex M

The A series of processors are targeted towards high performance and low power eg smart phones and tablets

The M series of processors are targeted towards single device embedded applications eg microwave oven and the like.

Neither family would have a need to interface to LPC

[Lukas]

You'll have to look for "embedded controllers" (the ones used in laptops for keyboard scanning and power management)

There are:
http://www.microchip.com/wwwproducts/en/MEC1322

Some more may include: https://chromium.googlesource.com/chromiumos/platform/ec/+/master/chip

[MosherIV]

The smallest pin count is (DIP) 8 ...

I do not think you understood what the OP was asking.

I think it was about ARM based microcontrollers that has support for a interface called "Low Pin Count interface"

[nctnico]

I never heard of an LPC interface so maybe the OP could point towards a specification. It could also be a manufacturer specific name for a standard interface. Omnivision for example uses the term SCCB for I2C.

[andersm]

I never heard of an LPC interface so maybe the OP could point towards a specification.

It's specified by Intel, designed to move chipset peripherals off the ISA bus.

[Jeroen3]

It's a legacy thing for people not yet ready to bring ISA bus to the grave it seems.
A quick search in the digikey database shows that only Renesas and Atmel have LPCI capable microcontrollers.
None carry a Cortex M, only 8051, AVR and some proprietary renesas thing called H8S/2600. Limited options.

Maybe a Cortex M1?

[andersm]

Not ARM, but Microchip's MEC14xx series uses a MIPS core similar to the PIC32s.

[nctnico]

Maybe a 4 bit SD interface can be tricked into providing a similar bus timings but then again I don't know how much needs to be handled in the hardware in order to meet timing requirements.

[kc8apf]

There are ARM9 and ARM11-based BMC SoCs from Aspeed and Emulex. Those are for running Linux though.

Sent from my Nexus 5X using Tapatalk

[plazma]

Thanks for the hints. Microchip MEC1322 looks good. ARM Cortex M4 core and plenty of GPIO. Just what I'm looking for.