Datasheet

115
32117D–AVR-01/12
AT32UC3C
8.6.18 32KHz Oscillator Control Register
Name: OSCCTRL32
Access Type: Read/Write
Offset: 0x004C
Reset Value: 0x00000000
Note: This register is only reset by Power-On Reset.
• STARTUP: Oscillator Startup Time
Select startup time for 32 KHz oscillator.
31 30 29 28 27 26 25 24
--------
23 22 21 20 19 18 17 16
----- STARTUP
15 14 13 12 11 10 9 8
------ MODE
76543210
-------OSC32EN
Table 8-10. Startup time for 32 KHz oscillator
STARTUP
Number of RC oscillator
clock cycle
Approximative Equivalent time
(RCSYS = 115 kHz)
00 0
1128 1.1ms
2 8192 72.3 ms
3 16384 143 ms
4 65536 570 ms
5 131072 1.1 s
6 262144 2.3 s
7 524288 4.6 s