Datasheet

LPC435X_3X_2X_1X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4 — 19 August 2014 70 of 158
NXP Semiconductors
LPC435x/3x/2x/1x
32-bit ARM Cortex-M4/M0 microcontroller
In the two-counter case, the following operational elements are global to the SCT, but the
last three can use match conditions from either counter:
• Clock selection
• Inputs
• Events
• Outputs
• Interrupts
7.17.1.1 Features
• Two 16-bit counters or one 32-bit counter.
• Counters clocked by bus clock or selected input.
• Up counters or up-down counters.
• State variable allows sequencing across multiple counter cycles.
• The following conditions define an event: a counter match condition, an input (or
output) condition, a combination of a match and/or and input/output condition in a
specified state.
• Events control outputs, interrupts, and DMA requests.
– Match register 0 can be used as an automatic limit.
– In bi-directional mode, events can be enabled based on the count direction.
– Match events can be held until another qualifying event occurs.
• Selected events can limit, halt, start, or stop a counter.
• Supports:
– 8 inputs
– 16 outputs
– 16 match/capture registers
– 16 events
– 32 states
– Match register 0 to 5 support a fractional component for the dither engine
7.17.2 Serial GPIO (SGPIO)
The Serial GPIOs offer standard GPIO functionality enhanced with features to accelerate
serial stream processing.
7.17.2.1 Features
• Each SGPIO input/output slice can be used to perform a serial to parallel or parallel to
serial data conversion.
• 16 SGPIO input/output slices each with a 32-bit FIFO that can shift the input value
from a pin or an output value to a pin with every cycle of a shift clock.
• Each slice is double-buffered.
• Interrupt is generated on a full FIFO, shift clock, or pattern match.
• Slices can be concatenated to increase buffer size.