AT32UC3B1128 Atmel Corporation, AT32UC3B1128 Datasheet - Page 236

• Manufacturer Part Number: AT32UC3B1128
• Manufacturer: Atmel Corporation

Specifications of AT32UC3B1128

• Flash (kbytes): 128 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 60 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 3
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 6
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: YES
• Dram Memory: No
• 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

Figure 19-22. Multi-master Flowchart
32059L–AVR32–01/2012
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 ?
Yes
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