Figure 22-29, Ure 22-29 – Rainbow Electronics AT91CAP9S250A User Manual
Page 197
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197
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
Figure 22-29. NWAIT Assertion in Read Access: Ready Mode (EXNW_MODE = 11)
EXNW_MODE = 11(Ready mode)
READ_MODE = 0 (NCS_controlled)
NRD_PULSE = 7
NCS_RD_PULSE =7
A[25:2]
MCK
NCS
NRD
4
5
6
3
2
0
0
0
1
4
5
6
3
2
1
1
Read cycle
Assertion is ignored
NWAIT
internally synchronized
NWAIT signal
Wait STATE
Assertion is ignored
NBS0, NBS1,
NBS2, NBS3,
A0,A1
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