ATA6020N ATMEL Corporation, ATA6020N Datasheet - Page 14

• Manufacturer Part Number: ATA6020N
• Description: Low-current Microcontroller For Watchdog Function
• Manufacturer: ATMEL Corporation

14
ATA6020N
Table 4-3.
VIM Voltage Interrupt Mask bit
VMS Voltage Monitor Status bit
Figure 4-10. Internal Supply Voltage Supervisor
Figure 4-11. External Input Voltage Supervisor
• VIM = 0, voltage monitor interrupt is enabled
• VIM = 1, voltage monitor interrupt is disabled
• VMS = 0, the voltage at the comparator input is below V
• VMS = 1, the voltage at the comparator input is above V
VM2
1
1
1
1
0
0
0
0
5.0 V
4.0 V
V
DD
VMS = 1
VM1
1.25 V
1
1
0
0
1
1
0
0
VMI
Voltage Monitor Modes
VM0
Low threshold
High threshold
1
0
1
0
1
0
1
0
Negative slope
Positive slope
Function
Disable voltage monitor
External (VIM input), internal reference threshold (1.25V), interrupt with
negative slope
Not allowed
External (VMI input), internal reference threshold (1.25V), interrupt with
positive slope
Internal (supply voltage), high threshold (5.0V), interrupt with negative slope
Not allowed
Internal (supply voltage), low threshold (4.0V), interrupt with negative slope
Not allowed
VMS = 1
VMS = 0
Internal reference level
Interrupt positive slope
Interrupt negative slope
Low threshold
High threshold
VMS = 1
VMS = 0
Ref
Ref
VMS = 0
4708D–4BMCU–09/05
t