The documentation might have that numbering, but that makes no difference in programming on the PowerPC. When we take the value 1 and shift left by 1 bit, we get 2.
That the documentation thinks this is bit 7 going to bit 6 is immaterial.
Calling the MSB "bit 1" is a tip of the hat to serial communications. In serial communication and networking, it is predominant to transmit the MSB first.
If the documentation is about a wire format, then using that numbering is correct down to the data link layer and (modulo framing considerations and such), physical.
Oh, I'm aware it makes no difference internally; I picked that documentation because I am somewhat intimately familiar with it as I worked on a product with that CPU and did a lot of driver work. My only point was to the poster I was replying to, who wrote "because when you number the bytes and bits you will see that the bytes are written left-to-right, while at the same time the bits are written right-to-left". That assumes that bits are universally numbered starting with 0 at the LSB, which isn't true.
That the documentation thinks this is bit 7 going to bit 6 is immaterial.
Calling the MSB "bit 1" is a tip of the hat to serial communications. In serial communication and networking, it is predominant to transmit the MSB first.
If the documentation is about a wire format, then using that numbering is correct down to the data link layer and (modulo framing considerations and such), physical.