AMBA AHB5 to AHB lite

Hi Colin,

I recently studied the specification of AHB5 (ARM® AMBA® 5 AHB Protocol Specification), I saw the description "In this specification, the term AHB is used to refer to both AHB-Lite and AHB5. Unless stated, signals are common to both AHB-Lite and AHB5." in Chapter 1.2.

So, is that means AHB-lite and AHB5 describe the same thing after the release of AMBA 5?

Many thanks!!

Hi Colin,

I recently studied the specification of AHB5 (ARM® AMBA® 5 AHB Protocol Specification), I saw the description "In this specification, the term AHB is used to refer to both AHB-Lite and AHB5. Unless stated, signals are common to both AHB-Lite and AHB5." in Chapter 1.2.

So, is that means AHB-lite and AHB5 describe the same thing after the release of AMBA 5?

Many thanks!!

Definitely not !

A lot of functions are common to the original AHB (AMBA 2 AHB), AHB-lite (AMBA 3 AHB-lite) and AHB5 (AMBA 5 AHB) protocols, so the term "AHB" is used in this AHB5 protocol document when the descriptions apply to both AHB-lite and AHB5.

But where the specification is referring to something specific to AHB5, it will state AHB5.

AHB5 supports everything in AHB-lite, but adds features.

Hi, Colin

I got it.

Thanks for your explanation!