Atmel Evaluation Kit for AT32uC3A0512, 32-Bit AVR Microcontroller Atmel ATEVK1105 ATEVK1105 Data Sheet
Product codes
ATEVK1105
43
AT32UC3A
12.4
Clock Connections
12.4.1
Timer/Counters
Each Timer/Counter channel can independently select an internal or external clock source for its
counter:
12.4.2
USARTs
Each USART can be connected to an internally divided clock:
9
0
Serial Peripheral Interface
SPI0
10
0
Serial Peripheral Interface
SPI1
11
0
Two-wire Interface
TWI
12
0
Pulse Width Modulation Controller
PWM
13
0
Synchronous Serial Controller
SSC
14
0
Timer/Counter
TC0
1
Timer/Counter
TC1
2
Timer/Counter
TC2
15
0
Analog to Digital Converter
ADC
16
0
Ethernet MAC
MACB
17
0
USB 2.0 OTG Interface
USBB
18
0
SDRAM Controller
SDRAMC
19
0
Audio Bitstream DAC
DAC
Table 12-3.
Interrupt Request Signal Map
Table 12-4.
Timer/Counter clock connections
Source
Name
Connection
Internal
TIMER_CLOCK1
32 KHz Oscillator
TIMER_CLOCK2
PBA clock / 2
TIMER_CLOCK3
PBA clock / 8
TIMER_CLOCK4
PBA clock / 32
TIMER_CLOCK5
PBA clock / 128
External
XC0
See
XC1
XC2
XC2
Table 12-5.
USART clock connections
USART
Source
Name
Connection
0
Internal
CLK_DIV
PBA clock / 8
1
2
3
2
3
32058K
AVR32-01/12