P89LPC915FDH NXP [NXP Semiconductors], P89LPC915FDH Datasheet - Page 33

• Manufacturer Part Number: P89LPC915FDH
• Description: 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V flash with 8-bit A/D converter
• Manufacturer: NXP [NXP Semiconductors]

Philips Semiconductors
9397 750 14397
Product data
9.9.2 Features
9.9.3 A/D operating modes
Fixed channel, single conversion mode:
conversion. A single conversion will be performed and the result placed in the result
register which corresponds to the selected input channel. An interrupt, if enabled, will
be generated after the conversion completes.
Fixed channel, continuous conversion mode:
selected for continuous conversion. The results of the conversions will be sequentially
placed in the four result registers. An interrupt, if enabled, will be generated after
every four conversions. Additional conversion results will again cycle through the four
result registers, overwriting the previous results. Continuous conversions continue
until terminated by the user.
Auto scan, single conversion mode:
can be selected for conversion. A single conversion of each selected input will be
performed and the result placed in the result register which corresponds to the
selected input channel. An interrupt, if enabled, will be generated after all selected
channels have been converted. If only a single channel is selected this is equivalent
to single channel, single conversion mode.
Auto scan, continuous conversion mode:
channels can be selected for conversion. A conversion of each selected input will be
performed and the result placed in the result register which corresponds to the
selected input channel. An interrupt, if enabled, will be generated after all selected
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An 8-bit, 4-channel multiplexed input, successive approximation A/D converter
Four A/D result registers
Six operating modes
Three conversion start modes
8-bit conversion time of 3.9 s at an ADC clock of 3.3 MHz
Interrupt or polled operation
Boundary limits interrupt
DAC output to a port pin with high output impedance
Clock divider
Power-down mode
– Fixed channel, single conversion mode
– Fixed channel, continuous conversion mode
– Auto scan, single conversion mode
– Auto scan, continuous conversion mode
– Dual channel, continuous conversion mode
– Single step mode
– Timer triggered start
– Start immediately
– Edge triggered
Rev. 04 — 17 December 2004
8-bit microcontrollers with accelerated two-clock 80C51 core
Any combination of the four input channels
P89LPC915/916/917
A single input channel can be selected for
Any combination of the four input
A single input channel can be
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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