Atmel Xplained Evaluation Board AT32UC3A3-XPLD AT32UC3A3-XPLD Fiche De Données
Codes de produits
AT32UC3A3-XPLD
477
32072H–AVR32–10/2012
AT32UC3A3
23.7.3
Clocks
The clock for the TWIM bus interface (CLK_TWIM) is generated by the Power Manager. This
clock is enabled at reset, and can be disabled in the Power Manager. It is recommended to dis-
able the TWIM before disabling the clock, to avoid freezing the TWIM in an undefined state.
clock is enabled at reset, and can be disabled in the Power Manager. It is recommended to dis-
able the TWIM before disabling the clock, to avoid freezing the TWIM in an undefined state.
23.7.4
DMA
The TWIM DMA handshake interface is connected to the Peripheral DMA Controller. Using the
TWIM DMA functionality requires the Peripheral DMA Controller to be programmed after setting
up the TWIM.
TWIM DMA functionality requires the Peripheral DMA Controller to be programmed after setting
up the TWIM.
23.7.5
Interrupts
The TWIM interrupt request lines are connected to the interrupt controller. Using the TWIM inter-
rupts requires the interrupt controller to be programmed first.
rupts requires the interrupt controller to be programmed first.
23.7.6
Debug Operation
When an external debugger forces the CPU into debug mode, the TWIM continues normal oper-
ation. If the TWIM is configured in a way that requires it to be periodically serviced by the CPU
through interrupts or similar, improper operation or data loss may result during debugging.
ation. If the TWIM is configured in a way that requires it to be periodically serviced by the CPU
through interrupts or similar, improper operation or data loss may result during debugging.