AT32UC3A3256AU Atmel Corporation, AT32UC3A3256AU Datasheet - Page 867

• Manufacturer Part Number: AT32UC3A3256AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A3256AU

• Flash (kbytes): 256 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: 110
• Ext Interrupts: 110
• Usb Transceiver: 1
• Usb Speed: Hi-Speed
• Usb Interface: Device + OTG
• Spi: 6
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Ssc: 1
• Sd / Emmc: 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): 128
• Self Program Memory: YES
• External Bus Interface: 1
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.0 to 3.6
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 12
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

Figure 31-5. Communication example
31.6.3
32072G–11/2011
Parallel Interface Mode Setting Procedure
sources can be cleared by setting corresponding bit in ISCR but DRQ which is cleared once
FIFO has been read/written.
Host controller supports parallel mode and must be set to parallel interface mode after the Mem-
ory Stick.
– Identify the Memory Stick media and confirm it is a Memory Stick PRO. For Memory
– Set the Memory Stick to parallel interface mode by executing TPC commands
– Write SRAC=0 and REI=0 to the system register (SYS) to switch host controller to
– Change serial clock (SCLK) while communication is not being performed with the
stick media identification, see “Memory Stick Standard Format Specifications ver.
1.X Appendix D” or “Memory Stick Standard Format Specifications ver. 2.0
Application Notes 1.3 Media Identification Process”.
SET_R/W_REG_ADRS then WRITE_REG to set System Parameter bit PAM=1.
parallel interface mode.
Memory Stick.
FIFO direction setting
Interrupt enable
Interrupt clear
Interrupt clear
Write to FIFO
Interrupt wait
Interrupt wait
TPC setting
CPU
PEND=1, MSINT=1
TPC = SET_CMD
MSISR.MSINT=1
MSISR.PEND=1
MSINT=1
PEND=1
FDIR=1
CMD
MSISCR register
MSISCR register
MSCMD register
MSSYS register
MSDAT register
MSIER register
Protocol start
Protocol end
INT received
MS INT wait
MSI
Communication
with Memory Stick
INT from
Memory Stick
867