at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 218
at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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Figure 21-23. TDF Optimization Disabled (TDF Mode = 0). TDF Wait States Between 2 Read Accesses on Different Chip
Figure 21-24. TDF Mode = 0: TDF Wait States Between a Read and a Write Access on Different Chip Selects
218
read1 controlling signal
read2 controlling signal
write2 controlling signal
read1 controlling signal
NBS0, NBS1,
NBS2, NBS3,
A0, A1
NBS0, NBS1,
NBS2, NBS3,
A0, A1
AT91SAM9263 Preliminary
A
[25:2]
D[31:0]
A[
D[31:0]
(NRD)
(NRD)
(NWE)
(NRD)
Selects
MCK
25:2]
MCK
TDF_CYCLES = 6
TDF_CYCLES = 4
read1 cycle
read1 cycle
read1 hold = 1
read1 hold = 1
Chip Select Wait State
TDF_CYCLES = 4
Read to Write
Wait State
TDF_CYCLES = 6
Chip Select
Wait State
2 TDF WAIT STATES
5 TDF WAIT STATES
write2 setup = 1
(optimization disabled)
TDF_MODE = 0
write2 cycle
(optimization disabled)
6249D–ATARM–20-Dec-07
TDF_MODE = 0
read2 setup = 1
read 2 cycle
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