Peripheral Simulation

For Atmel AT91M63200 — Power Management Controller

Simulation support for this peripheral or feature is comprised of:

• Dialog boxes which display and allow you to change peripheral configuration.
• VTREGs (Virtual Target Registers) which support I/O with the peripheral.

These simulation capabilities are described below.

Power Management Controller Dialog

The Power Management Controller Dialog configures the power saving mode of the ARM controller by enabling and disabling the system and peripheral clocks.

System & Peripheral Clock

• The CPU box, if checked, stops the system clock, and forces the processor into Idle mode.
• PMC_SCSR (System Clock Status Register) displays the status of the CPU clock.
• PMC_PCSR (Peripheral Clock Status Register) displays the current status of the peripheral clock.
• US0 if set, enables the USART 0 clock.
• US1 if set, enables the USART 1 clock.
• US2 if set, enables the USART 2 clock.
• SPI if set, enables the Serial Peripheral Interface clock.
• TC0 if set, enables the Timer/Counter 0 clock.
• TC1 if set, enables the Timer/Counter 1 clock.
• TC2 if set, enables the Timer/Counter 2 clock.
• TC3 if set, enables the Timer/Counter 3 clock.
• TC4 if set, enables the Timer/Counter 4 clock.
• TC5 if set, enables the Timer/Counter 5 clock.
• PIOA if set, enables the parallel I/O A clock.
• PIOB if set, enables the parallel I/O B clock.

XTAL VTREG
Data Type: unsigned long

The XTAL VTREG contains the frequency of the oscillator (in Hertz) used to drive the microcontroller. The value is automatically set from the value specified in Project Options - Options for Target. However, you may change the value of XTAL using the command window. For example:

XTAL=33000000

You may also output the current value of XTAL using the following:

XTAL

XTAL may be used in calculations to synchronize external scripts with the simulated microcontroller.