ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 208

Manufacturer Part Number

KIT EVAL FOR AT91SAM3U CORTEX

Manufacturer

Processor To Be Evaluated

Data Bus Width

Interface Type

Operating Supply Voltage

Silicon Manufacturer

Core Architecture

Core Sub-architecture

Silicon Core Number

Silicon Family Name

Kit Contents

Board CD Docs

Rohs Compliant

For Use With/related Products

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Manufacturer

Part Number:

Manufacturer:

Returns 1 if timer counted to 0 since last time this was read.

Indicates the clock source:

Enables SysTick exception request:

0 = counting down to zero does not assert the SysTick exception request

1 = counting down to zero to asserts the SysTick exception request.

Software can use COUNTFLAG to determine if SysTick has ever counted to zero.

Enables the counter:

0 = counter disabled

1 = counter enabled.

When ENABLE is set to 1, the counter loads the RELOAD value from the LOAD register and then counts down. On reach-

ing 0, it sets the COUNTFLAG to 1 and optionally asserts the SysTick depending on the value of TICKINT. It then loads the

RELOAD value again, and begins counting.

SAM3U Series

SysTick Control and Status Register

The SysTick CTRL register enables the SysTick features. See the register summary in

33 on page 207

for its attributes. The bit assignments are:

6430D–ATARM–25-Mar-11