AT32UC3A0512-ALTTA Atmel, AT32UC3A0512-ALTTA Datasheet - Page 75

• Manufacturer Part Number: AT32UC3A0512-ALTTA
• Description: IC MCU AVR32 512K FLASH 144LQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3A0512-ALTTA

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 109
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.6.6
Register name
Register access
Note: This register is only reset by Power-On Reset
•
•
Choose between crystal, or external clock
•
Select startup time for 32 KHz oscillator
Table 13-8.
32058J–AVR32–04/11
STARTUP
OSC32EN: Enable the 32 KHz oscillator
MODE: Oscillator Mode
STARTUP: Oscillator Startup Time
31
23
15
0
1
2
3
4
5
6
7
7
-
-
-
-
0: 32 KHz Oscillator is disabled
1: 32 KHz Oscillator is enabled
0: External clock connected on XIN32, XOUT32 can be used as a I/O (no crystal)
1: Crystal is connected to XIN32/XOUT32
2 to 7: reserved
PM 32 KHz Oscillator Control Register
Startup time for 32 KHz oscillator
Number of RC oscillator
clock cycle
0
128
8192
16384
65536
131072
262144
524288
30
22
14
6
-
-
-
-
29
21
13
5
-
-
-
-
OSCCTRL32
Read/Write
Approximative Equivalent time
(RCOsc = 115 kHz)
0
1.1 ms
72.3 ms
143 ms
570 ms
1.1 s
2.3 s
4.6 s
28
20
12
4
-
-
-
-
27
19
11
3
-
-
-
-
26
18
10
2
-
-
STARTUP
MODE
25
17
9
1
-
-
AT32UC3A
OSC32EN
24
16
8
0
-
75