Figure 22-3, Figure 22-4, Figure 22-5 – Rainbow Electronics AT91CAP9S250A User Manual
Page 172: Shows t
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172
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
Figure 22-3. Memory Connection for an 8-bit Data Bus
Figure 22-4. Memory Connection for a 16-bit Data Bus
Figure 22-5. Memory Connection for a 32-bit Data Bus
SMC
A0
NWE
NRD
NCS[2]
A0
Write Enable
Output Enable
Memory Enable
D[7:0]
D[7:0]
A[18:2]
A[18:2]
A1
A1
SMC
NBS0
NWE
NRD
NCS[2]
Low Byte Enable
Write Enable
Output Enable
Memory Enable
NBS1
High Byte Enable
D[15:0]
D[15:0]
A[19:2]
A[18:1]
A[0]
A1
D[31:16]
SMC
NBS0
NWE
NRD
NCS[2]
NBS1
D[15:0]
A[20:2]
D[31:16]
NBS2
NBS3
Byte 0 Enable
Write Enable
Output Enable
Memory Enable
Byte 1 Enable
D[15:0]
A[18:0]
Byte 2 Enable
Byte 3 Enable
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