ATA6020N ATMEL Corporation, ATA6020N Datasheet - Page 39

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

5.2.6.7
4708D–4BMCU–09/05
Duty Cycle Generator
Table 5-9.
The duty cycle generator generates duty cycles from 25%, 33% or 50%. The frequency at the
duty cycle generator output depends on the duty cycle and the Timer 2 prescaler setting. The
DCG-stage can also be used as an additional programmable prescaler for Timer 2.
Figure 5-22. DCG Output Signals
Mode
1
2
3
4
DCGO0
DCGO1
DCGO2
DCGO3
DCGIN
Timer 2 Mode Select Bits
T2MS1
1
1
0
0
T2MS0
1
0
1
0
Clock Output (POUT)
4-bit counter overflow (OVF1)
4-bit compare output (CM1)
4-bit compare output (CM1)
4-bit compare output (CM1)
Timer 2 Modes
12-bit compare counter, the
DCG have to be bypassed in
this mode
8-bit compare counter with
4-bit programmable prescaler
and duty cycle generator
8-bit compare counter clocked
by SYSCL or the external
clock input T2I, 4-bit prescaler
run, the counter 2/1 starts
after writing mode 3
8-bit compare counter clocked
by SYSCL or the external
clock input T2I, 4-bit prescaler
stop and resets
ATA6020N
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