ATEVK1104 Atmel, ATEVK1104 Datasheet - Page 242
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: 242 of 826
- Download datasheet (20Mb)
24.13.6
24.13.6.1
Figure 24-26. Clock Synchronization in Read Mode
Notes:
32058J-AVR32-04/11
TWI_THR
TXCOMP
SVREAD
SCLWS
SVACC
TXRDY
TWCK
1. TXRDY is reset when data has been written in the TH to the shift register and set when this data has been acknowledged or
2. At the end of the read sequence, TXCOMP is set after a STOP or after a REPEATED_START + an address different from
3. SCLWS is automatically set when the clock synchronization mechanism is started.
Clock Synchronization
non acknowledged.
SADR.
Clock Synchronization in Read Mode
1
2
S
S
The data is memorized in TWI_THR until a new value is written
TWI_THR is transmitted to the shift register
The clock is stretched after the ACK, the state of TWD is undefined during clock stretching
As soon as a START is detected
SADR
In both read and write modes, it may happen that THR/RHR buffer is not filled /emptied before
the emission/reception of a new character. In this case, to avoid sending/receiving undesired
data, a clock stretching mechanism is implemented.
The clock is tied low if the shift register is empty and if a STOP or REPEATED START condition
was not detected. It is tied low until the shift register is loaded.
Figure 24-26 on page 242
D D D A A A T T T A A A 0 0 0
R
Write THR
A
1
DATA0
A
describes the clock synchronization in Read mode.
DATA1
DATA1
CLOCK is tied low by the TWI
as long as THR is empty
A
XXXXXXX
2
DATA2
DATA2
Ack or Nack from the master
NA
AT32UC3A
S
242
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