ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 390
![KIT DEV/EVAL FOR AVR32 AT32UC3A](/photos/9/20/92035/atevk1104_sml.jpg)
ATEVK1104
Manufacturer Part Number
ATEVK1104
Description
KIT DEV/EVAL FOR AVR32 AT32UC3A
Manufacturer
Atmel
Series
AVR®32r
Type
MCUr
Datasheets
1.ATAVRONE-PROBECBL.pdf
(16 pages)
2.ATEVK1104.pdf
(826 pages)
3.ATEVK1104.pdf
(90 pages)
4.ATEVK1104.pdf
(6 pages)
5.ATEVK1104.pdf
(12 pages)
Specifications of ATEVK1104
Contents
Evaluation Board, Software and Documentation
Processor To Be Evaluated
AT32UC3A3
Data Bus Width
32 bit
Interface Type
USB, SPI, USART
Silicon Manufacturer
Atmel
Core Architecture
AVR
Core Sub-architecture
AVR UC3
Silicon Core Number
AT32UC3A3256
Silicon Family Name
AVR
Kit Contents
Board CD Docs
Rohs Compliant
Yes
For Use With/related Products
AT32UC3A3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATEVK1104
Manufacturer:
Atmel
Quantity:
135
- ATAVRONE-PROBECBL PDF datasheet
- ATEVK1104 PDF datasheet #2
- ATEVK1104 PDF datasheet #3
- ATEVK1104 PDF datasheet #4
- ATEVK1104 PDF datasheet #5
- Current page: 390 of 826
- Download datasheet (20Mb)
27.6.6.2
Figure 27-23. TDF Optimization: No TDF wait states are inserted if the TDF period is over when the next access begins
27.6.6.3
32058J–AVR32–04/11
CLK_SMC
D[15:0]
A[25:2]
NCS0
NWE
NRD
TDF Optimization Enabled (TDF_MODE = 1)
TDF Optimization Disabled (TDF_MODE = 0)
Read access on NCS0 (NRD controlled)
When the TDF_MODE of the MODE register is set to 1 (TDF optimization is enabled), the SMC
takes advantage of the setup period of the next access to optimize the number of wait states
cycle to insert.
Figure 27-23
NWE, on Chip Select 0. Chip Select 0 has been programmed with:
NRD_HOLD = 4; READ_MODE = 1 (NRD controlled)
NWE_SETUP = 3; WRITE_MODE = 1 (NWE controlled)
TDF_CYCLES = 6; TDF_MODE = 1 (optimization enabled).
When optimization is disabled, tdf wait states are inserted at the end of the read transfer, so that
the data float period is ended when the second access begins. If the hold period of the read1
controlling signal overlaps the data float period, no additional tdf wait states will be inserted.
Figure
• read access followed by a read access on another chip select,
• read access followed by a write access on another chip select,
27-24,
shows a read access controlled by NRD, followed by a write access controlled by
NRD_HOLD = 4
Figure 27-25
TDF_CYCLES = 6
and
Figure 27-26
Read to Write
Wait State
NWE_SETUP = 3
illustrate the cases:
write access on NCS0 (NWE controlled)
AT32UC3A
390
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