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. The
examples assume the channel is configured for memory addresses; however, the concepts dis-
cussed also apply to I/O-configured channels.
A2534-01
X
X
X
XXXXXXXXXX01
X
X
X
XXXXXXXXXXX0
X
X
X
XXXXXXXXX011
0
1
1
111111111111
1
1
1
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
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