Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
14-4

Figure 14-2. Determining a Channel’s Address Block Size

Any ones that are to the left of the right-most zero determine the number of blocks and the loca-tions where the blocks are repeated. This is best illustrated by the following four examples. Theexamples assume the channel is configured for memory addresses; however, the concepts dis-cussed also apply to I/O-configured channels.
A2534-01
XXX
XXXXXXXXXX01
X
XX
XXXXXXXXXXX0
X
XX
XXXXXXXXX011
0
11
111111111111
1
11
111111111111
15 1
2 = 2 Kbyte
1
2 = 4 Kbyte
2
2 = 8 Kbyte
3
2 = 32768 Kbyte
15
2 = 65536 Kbyte
16
15-bit Channel Mask Block Size