at43usb355 ATMEL Corporation, at43usb355 Datasheet - Page 39

• Manufacturer Part Number: at43usb355
• Description: At43usb355 Full-speed Usb Microcontroller With Embedded Hub, Adc And Pwm
• Manufacturer: ATMEL Corporation

Timer/Counters
Timer/Counter
Prescaler
Figure 12. Timer/Counter Prescaler
2603G–USB–04/06
CS10
CS11
CS12
CK
T0
T1
0
The AT43USB355 provides two general-purpose Timer/Counters - one 8-bit T/C and one 16-
bit T/C. The Timer/Counters have individual prescaling selection from the same 10-bit prescal-
ing timer. Both Timer/Counters can either be used as a timer with an internal clock timebase or
as a counter with an external pin connection which triggers the counting.
The four different prescaled selections are: CK/8, CK/64, CK/256 and CK/1024 where CK is
the oscillator clock. For the two Timer/Counters, added selections as CK, external source and
stop, can be selected as clock sources.
Timer/Counter1 Clock Source
TCK1
10-bit T/C Prescaler
CS00
CS01
CS02
0
Timer/Counter0 Clock Source
TCK0
AT43USB355
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