LPC1547JBD48 datasheet(34/99 Pages) NXP

34 / 99 page

LPC15XX

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Product data sheet

Rev. 1 — 19 February 2014

34 of 99

NXP Semiconductors

LPC15xx

32-bit ARM Cortex-M3 microcontroller

8.22.2 Timer controlled subsystem

The timers, the analog components, and the DMA can be configured to form a subsystem

that can run independently of the main processor under the control of the SCTs and any

events that are generated by the A/D converters, the comparators, the SCT output

themselves, or the external pins. A/D conversions can be triggered by the timer outputs,

the comparator outputs or by events from external pins. Data can be transferred from the

ADCs to memory using the DMA controller, and the DMA transfers can be triggered by the

ADCs, the comparator outputs, or by the timer outputs.

For an overview of the subsystem, see Figure 13 “Subsystem with timers, switch matrix,

DMA, and analog components”.

Fig 12. PWM-Analog subsystem

TEMP SENSOR

VDDA DIVIDER

VOLTAGE

REFERENCE

ADC0/ADC1

ACMP0

ACMP1

ACMP2

ACMP3

SCT IPU

TIMER0

MATCH/

MATCHRELOAD

SCT0

OUTPUTS

TIMER1

MATCH/

MATCHRELOAD

SCT1

OUTPUTS

TIMER2

MATCH/

MATCHRELOAD

SCT2

OUTPUTS

TIMER3

MATCH/

MATCHRELOAD

SCT3

OUTPUTS

8 x PWM OUT

6 x PWM OUT

SCT0/1/2/3

digital signal from/to pins

analog signal from/to pins

digital signal internal

analog signal internal

analog peripheral

digital peripheral

aaa-010873

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