1. Mapper Slots (Numbered 0:255)
Event 1 to 16 (4 bits)
   
Source 0 1 14 15
    30 31 16 17




4 bits
   
224
225
238
239
   
Source 15
240
241
254
255
Each mapper slot (0:255) points to a distinct Memory Buffer Block
One event’s slots are filled or being filled; others point to empty memory
After an event is finished, the mapper is set to point to new memory slots for that event (in preparation for the next time that event number is used)
JTL, MSU 8/8/97