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6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
Figure 10-25. 1 Wait State, 8-bit Bus Width, Half-word Transfer
ADDR
X B
1
1 Wait State
MCK
A0 - A23
NCS
NRD
D0 - D15
Internal Bus
ADDR+1
1 Wait State
X X B
2
B
1
X B
2
X X X B
1
READ ACCESS
·
Standard Protocol
·
Early Protocol
NRD
X B
1
D0 - D15
X B
2
WRITE ACCESS
NWR0
X B
1
D0 - D15
X B
2
NWR1