AT32UC3C2512C Automotive Atmel Corporation, AT32UC3C2512C Automotive Datasheet - Page 133
AT32UC3C2512C Automotive
Manufacturer Part Number
AT32UC3C2512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
- AT90CAN128_AUTOMOTIVE PDF datasheet
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #2
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #3
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9.3
Figure 9-1.
9.4
9.4.1
9.4.2
9166C–AVR-08/11
Block Diagram
Product Dependencies
RC OSC
PB clock
32 KHz
GCLK
Power Management
Clocks
REGISTER
DIGITAL
TUNER
CLK_AST
Asynchronous Timer block diagram
CSSEL
CLK_AST_PRSC
CONTROL REGISTER
In order to use this module, other parts of the system must be configured correctly, as described
below.
When the AST is enabled, it will remain clocked as long as its selected clock source is running. It
can also wake the CPU from the currently active sleep mode. Refer to the Power Manager chap-
ter for details on the different sleep modes.
The clock for the AST bus interface (CLK_AST) is generated by the Power Manager. This clock
is turned on by default, and can be enabled and disabled in the Power Manager.
A number of clocks can be selected as source for the internal prescaler clock CLK_AST_PRSC.
The prescaler, counter, and interrupt will function as long as this selected clock source is active.
The selected clock must be enabled in the System Control Interface (SCIF).
The following clock sources are available:
• System RC oscillator (RCSYS). This oscillator is always enabled, except in some sleep
• 32KHz crystal oscillator (OSC32K). This oscillator must be enabled before use.
modes. Please refer to the Electrical Characteristics chapter for the characteristic frequency
of this oscillator.
REGISTER
PERIODIC
INTERVAL
Interrupts
Periodic
Prescaler
EN
32-bit
PSEL
CLK_AST_CNT
CLK_AST
REGISTER
COUNTER
Interrupts
ALARM
VALUE
Alarm
counter
32-bit
CLK_AST
OVF
WAKE ENABLE
REGISTER
Interrupt
Control
Control
Wake
AT32UC3C
Events
Wake
IRQs
133
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