Rainbow Electronics AT91CAP9S250A - Manual (Page 190)

190
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
Figure 22-20. TDF Period in NRD Controlled Read Access (TDF = 2)
Figure 22-21. TDF Period in NCS Controlled Read Operation (TDF = 3)
NBS0, NBS1,
NBS2, NBS3,
A0, A1
NCS
NRD controlled read operation
tpacc
MCK
NRD
D[31:0]
TDF = 2 clock cycles
A[25:2]
NCS
TDF = 3 clock cycles
tpacc
MCK
D[31:0]
NCS controlled read operation
A[25:2]
NBS0, NBS1,
NBS2, NBS3,
A0,A1
NRD