ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 374

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 25-20. TDF Optimization Disabled (TDF Mode = 0). TDF wait states between 2 read accesses on different chip
Figure 25-21. TDF Mode = 0: TDF wait states between a read and a write access on different chip selects
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374
read1 controlling signal
read2 controlling signal
write2 controlling signal
read1 controlling signal
NBS0, NBS1,
NBS0, NBS1,
SAM3U Series
SAM3U Series
D[15:0]
A[ 23:2]
A0, A1
(NRD)
(NRD)
D[15:0]
A [23:2]
A0, A1
(NWE)
selects
(NRD)
MCK
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)
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
TDF_MODE = 0
read2 setup = 1
read 2 cycle