How to read pin notation in IC datasheets

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1

In IC datasheets there are often tables like the following for two format selection pins on a chip, CODE 0 and CODE 1

CODE [1:0] FORMAT

00 Right Justified

01 Left Justified

10 Chip Reset

11 Gated BCLK

I am confused about how to read this

To get left justified output would I set CODE 0 = 0 and CODE 1 = 1? or the other way around?

Basically I’m confused by the way the numbers of the pins in the title of the table are written backwards, CODE[1:0] instead of CODE[0:1].

Is this significant? It seems to be this way in all the datasheets i’m looking at.

Thanks for any help

2

biltong:
In IC datasheets there are often tables like the following for two format selection pins on a chip, CODE 0 and CODE 1

CODE [1:0] FORMAT

00 Right Justified

01 Left Justified

10 Chip Reset

11 Gated BCLK

I am confused about how to read this

To get left justified output would I set CODE 0 = 0 and CODE 1 = 1? or the other way around?

Basically I’m confused by the way the numbers of the pins in the title of the table are written backwards, CODE[1:0] instead of CODE[0:1].

Is this significant? It seems to be this way in all the datasheets i’m looking at.

Thanks for any help

IMHO, you want code [1] = 0 and code [0] = 1. In other words, code [1] is the msb and code [0] is the lsb. If it was code [2:0] then code [2] is the msb.
3

If it says CODE[1:0] why on earth would you assume they mean CODE[0:1] ?

4

Excellent, thanks!