AT32UC3B0512-Z2UR Atmel, AT32UC3B0512-Z2UR Datasheet - Page 230

• Manufacturer Part Number: AT32UC3B0512-Z2UR
• Description: IC MCU AVR32 512K FLASH 64QFN
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B0512-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: 96K x 8
• Program Memory Size: 512KB (512K 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: -

19.11.3
32059J–12/2010
Read-write Flowcharts
The following flowcharts shown in
read and write operations. A polling or interrupt method can be used to check the status bits.
The interrupt method requires that the interrupt enable register (IER) be configured first.
Figure 19-14. TWI Write Operation with Single Data Byte without Internal Address.
(CLDIV, CHDIV, CKDIV) in TWI_CWGR
- Device slave address (DADR)
Set the Master Mode register:
TWI_CR = MSEN + SVDIS
Write ==> bit MREAD = 0
TWI_THR = Data to send
Figure 19-14
Set the Control register:
Load Transmit register
- Transfer direction bit
Read Status register
Read Status register
(Needed only once)
Transfer finished
- Master enable
TXCOMP = 1?
Set TWI clock
TXRDY = 1?
Yes
Yes
BEGIN
to
Figure 19-19 on page 235
No
No
AT32UC3B
give examples for
230