AT32UC3A0512AU Atmel Corporation, AT32UC3A0512AU Datasheet - Page 241

• Manufacturer Part Number: AT32UC3A0512AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A0512AU

• Flash (kbytes): 512 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 109
• Ext Interrupts: 109
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 1
• Uart: 4
• Ssc: 1
• Ethernet: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Operating Voltage (vcc): 3.0-3.6 or (1.65-1.95+3.0-3.6)
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 10
• Output Compare Channels: 16
• Input Capture Channels: 6
• Pwm Channels: 13
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

32058K AVR32-01/12
Figure 24-24. Write Access Ordered by a Master
24.13.5.3
Figure 24-25. Master Performs a General Call
GCACC
SVACC
EOSVACC
TXD
SVREAD
RXRDY
SVACC
TWD
General Call
S
S
G G G E E E N N N E E E R R R A A A L L L C C C A A A L L L L L L
0000000 + W
ADR
TWI answers with a NACK
SADR does not match,
Notes:
The general call is performed in order to change the address of the slave.
If a GENERAL CALL is detected, GACC is set.
After the detection of General Call, it is up to the programmer to decode the commands which
come afterwards.
In case of a WRITE command, the programmer has to decode the programming sequence and
program a new SADR if the programming sequence matches.
Figure 24-25 on page 241
Note:
W
NA
1. When SVACC is low, the state of SVREAD becomes irrelevant.
2. RXRDY is set when data has been transmitted from the shift register to the RHR and reset
1. This method allows the user to create an own programming sequence by choosing the pro-
WRITE command = 00000100X
A
RESET command = 00000110X
DATA
when this data is read.
gramming bytes and the number of them. The programming sequence has to be provided to
the master.
Reset or write DADD
Reset after read
NA
P/S/Sr
describes the General Call access.
SADR
TWI answers with an ACK
A
SADR matches,
W A
DATA1
SVREAD has to be taken into account only while SVACC is active
Programming sequence
DATA
New SADR
A
A
DATA2
Read RHR
A
A
New SADR
DATA NA S/Sr
AT32UC3A
A
P
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