Intel E3815 FH8065301567411 Data Sheet

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

4561

This function provides a set of timers that to be used by the operating system for 
timing events. One timer block is implemented, containing one counter and three 
timers.

This mode can be thought of as creating a one-shot. When a timer is set up for non-
periodic mode, it generates an interrupt when the value in the main counter matches 
the value in the timer's comparator register. As timers 1 and 2 are 32-bit, they will 
generate another interrupt when the main counter wraps.

T0CV cannot be programmed reliably by a single 64-bit write in a 32-bit environment 
unless only the periodic rate is being changed. If T0CV needs to be re-initialized, the 
following algorithm is performed: 

1. Set T0C.TVS

2. Set T0CV[31:0]

3. Set T0C.TVS

4. Set T0CV[63:32]

Every timer is required to support the non-periodic mode of operation.

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Platform Control Unit

UART

LP

C

GP
IO

RTC

HP
ET

82
59

AP
IC

82
54

SMB

iLB

SPI

PMC