AT32UC3L064_2 Datasheet, PDF (639/830 Pages) ATMEL Corporation – 32-bit AVR® Microcontroller

27.9.1 Control Register
Name:
CTRL
Access Type:
Read/Write
Offset:
0x00
Reset Value:
0x00000000
AT32UC3L016/32/64
31
30
29
28
27
26
25
24
-
-
-
-
-
-
-
-
23
22
21
20
19
18
17
16
-
-
-
-
-
-
SUT[9:8]
15
14
13
12
11
10
9
8
SUT[7:0]
7
6
5
4
3
ACTEST
-
ESTART
USTART
-
2
1
0
-
EVENTEN
EN
• SUT: Startup Time
Analog Comparator startup time = ---^S----^U----^T----- .
F_GCLK
Each time an AC is enabled, the AC comparison will be enabled after the startup time of the AC.
• ACTEST: Analog Comparator Test Mode
0: The Analog Comparator outputs feeds the channel logic in ACIFB.
1: The Analog Comparator outputs are bypassed with the AC Test Register.
• ESTART: Peripheral Event Start Single Comparison
Writing a zero to this bit has no effect.
Writing a one to this bit starts a comparison and can be used for test purposes.
This bit is cleared when comparison is done.
This bit is set when an enabled peripheral event is received.
• USTART: User Start Single Comparison
Writing a zero to this bit has no effect.
Writing a one to this bit starts a Single Measurement Mode comparison.
This bit is cleared when comparison is done.
• EVENTEN: Peripheral Event Trigger Enable
0: A peripheral event will not trigger a comparison.
1: Enable comparison triggered by a peripheral event.
• EN: ACIFB Enable
0: The ACIFB is disabled.
1: The ACIFB is enabled.
32099D–06/2010
639