68300

Group,

I am confused about how to assign Data Port pull up/down functions during 
reset.  According to table 4-19, chip select pin functions, I can change 
the meaning of several of the pins during reset.  There are twelve pins 
shown, but in the text it says that only 8 data bus lines are associated.

How are they mapped?

The user manual says refer to 4.8.4, which even confused me more.

I have taken over an existing design where the previous engineer has 
assigned boot values to the data bus as follows.

D0 = 1
D1 = 1
D2 = 1
D3 = 0
D4 = 1
D5 = 1
D6 = 1
D7 = 1
D8 = 0
D9 = 0
D11 = 1

NOTICE D10 WAS SKIPPED

How do I figure out how Table 4-19 is initialized?

Robert E. Yablonski
Hunt Dabney & Associates