AT32UC3A1256AU Atmel Corporation, AT32UC3A1256AU Datasheet - Page 486

• 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
29.7.28
These registers reset to zero on a read and stick at all ones when they count to their maximum value. They should be read
frequently enough to prevent loss of data. The receive statistics registers are only incremented when the receive enable bit
is set in the network control register. To write to these registers, bit 7, WESTAT, in the network control register, NCR, must
be set. The statistics register block contains the following registers.
29.7.28.1
Register Name:
Access Type:
• FROK: Pause Frames received OK
A 16-bit register counting the number of good pause frames received. A good frame has a length of 64 to 1518 (1536 if bit
8, BIG, in network configuration register, NCFGR, is set, 10240 if bit 3, JFRAME in network configuration register, NCFGR,
is set) and has no FCS, alignment or receive symbol errors.
29.7.28.2
Register Name:
Access Type:
• FTOK: Frames Transmitted OK
A 24-bit register counting the number of frames successfully transmitted, i.e., no underrun and not too many retries.
31
23
15
31
23
15
–
–
7
–
7
MACB Statistic Registers
Pause Frames Received Register
Frames Transmitted OK Register
30
22
14
30
22
14
PFR
–
–
6
FTO
–
6
Read/Write
Read/Write
29
21
13
29
21
13
–
–
5
–
5
28
20
12
28
20
12
–
–
4
–
4
FROK
FROK
FTOK
FTOK
FTOK
27
19
11
27
19
11
–
–
3
–
3
26
18
10
26
18
10
–
–
2
–
2
25
17
25
17
–
–
9
1
–
9
1
AT32UC3A
24
16
24
16
–
–
8
0
–
8
0
486