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10
STP2230SOP
Crossbar Switch
XB1
July 1997
0123456789
10
11
CLK
BMX_CMD
B[7:0]
MWB_CTRL
A[15:0]
D[0:3]
D[4:7]
D0, D1
D2, D3
D4, D5
D6, D7
PM
Figure 9. Basic Memory Write From Processor
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10
11
CLK
BMX_CMD
C[3:0]
MWB_CTRL
A[15:0]
IM
D[0:3]
D[4:7]
D0
D1
D2
D3
D4
D5
D6
D7
Figure 10. Basic Memory Write From I/O Ports
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10
11
CLK
BMX_CMD
B[7:0]
C[3:0]
D0, D1
D0
PIS
D1
Figure 11. Single Transfer From Processor to I/O Port
0
1234
56
7
8
9
10
11
CLK
BMX_CMD
B[7:0]
C[3:0]
D0, D1
PIB
D2, D3
D4, D5
D6, D7
D0
D1
D2
D3
D4
D5
D6
D7
Figure 12. Block Transfer From Processor to I/O Port