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6174B–ATARM–07-Nov-05
AT91FR40162S Preliminary
20.8
Flash Toggle Bit Characteristics
Notes:
1. These parameters are characterized and not 100% tested.
2. See t
OE
spec in
”AC Flash Read Characteristics” on page 192
20.8.1
Toggle Bit Waveforms
Figure 20-19. Toggle Bit Waveforms
Notes:
1. Toggling either OE or CE or both OE and CE will operate toggle bit. The t
OEHP
specification
must be met by the toggling input(s).
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
Table 20-19. Toggle Bit Characteristics
Symbol
Parameter
Min
Typ
Max
Units
t
DH
Data Hold Time
10
ns
t
OEH
OE Hold Time
10
ns
t
OE
OE to Output Delay
ns
t
OEHP
OE High Pulse
50
ns
t
WR
Write Recovery Time
0
ns