Q:

Is CHAR_BIT ever > 8?

The ISO C Standard requires CHAR_BIT to be at least 8.
With POSIX mandating CHAR_BIT be equal to 8, and (almost?) all networking and communication standards using octets, is there any contemporary C implementation where CHAR_BIT > 8?
(Note: I'm not interested in historic computer architectures using 18 or 36 bit words. It's genuinely a question about C as it is used today on current hardware; think systems with a C99 or later implementation).

A:

TMS320C28x DSP from Texas Instruments has a byte with 16 bits.
Documentation for the compiler specifies CHAR_BIT as 16 on page 101. 
This appears to be a modern processor (currently being sold), compilers supporting C99 and C++03.

A:

Another example is Analog Devices' SHARC processor family. 
Its C implementation, CrossCore Embedded Studio, has CHAR_BIT == 32 and claims to provide freestanding C99 and C++11 conformance.

