AT32UC3B1512 Atmel Corporation, AT32UC3B1512 Datasheet - Page 116

• Manufacturer Part Number: AT32UC3B1512
• Manufacturer: Atmel Corporation

Specifications of AT32UC3B1512

• Flash (kbytes): 512 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
• Dac Channels: 2
• Dac Resolution (bits): 16
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 96
• 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

13.7.12
Name:
Access Type:
Offset:
Reset Value:
•
•
•
32059L–AVR32–01/2012
EN
PRESC
PIN
31
23
15
7
-
-
-
-
0: Keypad scanning is disabled
1: Keypad scanning is enabled
Prescale select for the keypad scan rate:
Scan rate = 2
The RC clock period can be found in the Electrical Characteristics section.
The index of the currently active scan pin. Writing to this bitfield has no effect.
Scan Register
(SCAN.PRESC+1)
30
22
14
6
-
-
-
-
SCAN
Read/Write
0x2C
0x0000000
T
RC
29
21
13
5
-
-
-
-
28
20
12
4
-
-
-
27
19
11
3
-
-
-
PRESC[4:0]
26
18
10
2
-
-
PIN[2:0]
25
17
9
1
-
-
EN
24
16
8
0
-
116