AT32UC3A1256AU Atmel Corporation, AT32UC3A1256AU Datasheet - Page 340

• Manufacturer Part Number: AT32UC3A1256AU
• Manufacturer: Atmel Corporation

Specifications of AT32UC3A1256AU

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 66 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 32
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 69
• Ext Interrupts: 69
• 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
• 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

32058K AVR32-01/12
26.8.2
Name:
Access Type:
Offset:
Reset Value:
• RTSDIS/RCS: Request to Send Disable/Release SPI Chip Select
0: No effect.
1: Drives the pin RTS to 1.
RCS = 0: No effect.
RCS = 1: Releases the Slave Select Line NSS (RTS pin).
• RTSEN/FCS: Request to Send Enable/Force SPI Chip Select
0: No effect.
1: Drives the pin RTS to 0.
FCS = 0: No effect.
FCS = 1: Forces the Slave Select Line NSS (RTS pin) to 0, even if USART is no transmitting, in order to address SPI slave
devices supporting the CSAAT Mode (Chip Select Active After Transfer).
• RETTO: Rearm Time-out
0: No effect
1: Restart Time-out
• RSTNACK: Reset Non Acknowledge
0: No effect
1: Resets NACK in CSR.
RETTO
TXDIS
– If USART does not operate in SPI Master Mode (MODE … 0xE):
– If USART operates in SPI Master Mode (MODE = 0xE):
– If USART does not operate in SPI Master Mode (MODE … 0xE):
– If USART operates in SPI Master Mode (MODE = 0xE):
31
23
15
–
–
7
USART Control Register
RSTNACK
TXEN
30
22
14
CR
Write-only
0x0
-
–
–
6
RXDIS
RSTIT
29
21
13
–
–
5
SENDA
RXEN
28
20
12
–
–
4
RTSDIS/RCS
STTTO
RSTTX
27
19
11
–
3
RTSEN/FCS
STPBRK
RSTRX
26
18
10
–
2
STTBRK
25
17
–
–
9
1
–
AT32UC3A
RSTSTA
24
16
–
–
8
0
–
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