ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 399

• Manufacturer Part Number: ATEVK1104
• Description: KIT DEV/EVAL FOR AVR32 AT32UC3A
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

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

27.6.8.2
Figure 27-33. Clock Rate Transition Occurs while the SMC is Performing a Write Operation
32058J–AVR32–04/11
Internal signal from PM
Slow Clock Mode
NBS0, NBS1,
Switching from (to) Slow Clock Mode to (from) Normal Mode
A0, A1
CLK_SMC
This write cycle finishes with the slow clock mode set
A[25:2]
NWE
NCS
Of parameters after the clock rate transition
When switching from slow clock mode to the normal mode, the current slow clock mode transfer
is completed at high clock rate, with the set of slow clock mode parameters.See
page
Figure 27-34
other.
SLOW CLOCK MODE WRITE SLOW CLOCK MODE WRITE
399. The external device may not be fast enough to support such timings.
1
NWE_CYCLE = 3
illustrates the recommended procedure to properly switch from one mode to the
1
1
1
1
Slow clock mode transition is detected:
1
Reload Configuration Wait State
2
NORMAL MODE WRITE
NWE_CYCLE = 7
3
AT32UC3A
Figure 27-33 on
2
399