at89lp2052-20xi ATMEL Corporation, at89lp2052-20xi Datasheet - Page 49

• Manufacturer Part Number: at89lp2052-20xi
• Description: At89lp2052 8-bit Microcontroller With 2/4-kbyte Flash
• Manufacturer: ATMEL Corporation

Table 20-1.
3547H–MICRO–5/07
Symbol
CIDL
CF
CEN
CM [2:0]
ACSR = 97H
Not Bit Addressable
Bit
Function
Comparator Idle Enable. If CIDL = 1 the comparator will continue to operate during Idle mode. If CIDL = 0 the
comparator is powered down during Idle mode. The comparator is always shut down during Power-down mode.
Comparator Interrupt Flag. Set when the comparator output meets the conditions specified by the CM [2:0] bits and CEN
is set. The flag must be cleared by software. The interrupt may be enabled/disabled by setting/clearing bit 6 of IE.
Comparator Enable. Set this bit to enable the comparator. Clearing this bit will force the comparator output low and
prevent further events from setting CF.
Comparator Interrupt Mode
ACSR
2
0
0
0
0
1
1
1
1
–
7
1
0
0
1
1
0
0
1
1
– Analog Comparator Control & Status Register
0
0
1
0
1
0
1
0
1
Interrupt Mode
Negative (Low) level
Positive edge
Toggle with debounce
Positive edge with debounce
Negative edge
Toggle
Negative edge with debounce
Positive (High) level
–
6
CIDL
5
CF
4
CEN
3
CM2
AT89LP2052/LP4052
2
Reset Value = XXX0 0000B
CM1
1
CM0
0
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