PORT 1 __________________ PORT 2 __________________
\ o o o o o / \ o o o o o /
\ o o o o / \ o o o o /
\__|_________/ \__|_________/
_________| |
|FIRE 0\ ______________________________________|
| | FIRE 1\
| |
| ___|___________________________________________________
| | FIRE | FIRE | | PRA
| | 1\ | 0\ | |$BFE001
| |______|______|______|______|______|______|______|______|
| 7 | 0
|______________|
_______________________________________________________
| | | |Data
| O | O | O O O O 1 1 |direc-
|______|______|______|______|______|______|______|______| tion
IN IN OUT OUT OUT OUT OUT OUT DDRA
$BFE201
READING FIRE BUTTONS
- Appendix E 315 -