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AT43USB325 Datasheet(PDF) 42 Page - ATMEL Corporation

Part # AT43USB325
Description  Multimedia USB Keyboard Controller with Embedded Hub
PDF  109 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB325 Datasheet(HTML) 42 Page - ATMEL Corporation

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3355C–USB–4/05
AT43USB325
6.
Timer/Counters
The AT43USB325 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 prescaling
timer. Both Timer/Counters can either be used as a timer with an internal clock time base or as a
counter with an external pin connection which triggers the counting.
6.1
Timer/Counter Prescaler
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.
Figure 6-1.
Timer/Counter Prescaler
10-bit T/C Prescaler
CS00
CS01
CS02
CS10
CS11
CS12
0
0
CK
T0
T1
Timer/Counter1 Clock Source
TCK1
Timer/Counter0 Clock Source
TCK0



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