AT32UC3B064-Z2UR Atmel, AT32UC3B064-Z2UR Datasheet - Page 238
![MCU AVR32 64K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
AT32UC3B064-Z2UR
Manufacturer Part Number
AT32UC3B064-Z2UR
Description
MCU AVR32 64K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B164-AUR.pdf
(680 pages)
Specifications of AT32UC3B064-Z2UR
Package / Case
64-QFN
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
44
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
16K x 8
Program Memory Size
64KB (64K x 8)
Data Converters
A/D 8x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Figure 19-22. Multi-master Flowchart
32059J–12/2010
DADR + SVDIS + MSEN + CLK + R / W
Yes
Program the Master mode
Programm the SLAVE mode:
SADR + MSDIS + SVEN
Read TWI_RHR
Read Status Register
Read Status Register
a master access ?
TXCOMP = 1 ?
ARBLST = 1 ?
EOSACC = 1 ?
SVACC = 1 ?
START
Yes
Yes
Yes
Yes
Yes
Yes
Data to read?
RXRDY= 0 ?
GACC = 1 ?
Yes
Yes
Read Status Register
TXCOMP = 0 ?
Stop transfer
MREAD = 1 ?
programming sequence
GENERAL CALL TREATMENT
Read TWI_RHR
Decoding of the
Change SADR
SVREAD = 0 ?
RXRDY= 0 ?
Prog seq
OK ?
Data to send ?
TXRDY= 0 ?
Yes
Yes
Yes
Yes
Write in TWI_THR
Write in TWI_THR
TXRDY= 1 ?
AT32UC3B
Yes
238
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