P89LPC92X1 NXP Semiconductors, P89LPC92X1 Datasheet - Page 48

• Manufacturer Part Number: P89LPC92X1
• Description: The P89LPC9201/9211/922A1/9241/9251 is a single-chip microcontroller, available in lowcost packages, based on a high performance processor architecture that executesinstructions in two to four clocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

NXP Semiconductors
P89LPC92X1
Product data sheet
Fig 15. ADC block diagram
V
ref(bg)
V
sen
8.5.1 Fixed channel, single conversion mode
8.5.2 Fixed channel, continuous conversion mode
8.3 Block diagram
8.4 Temperature sensor
8.5 ADC operating modes
2:1 MUX
AD10
AD11
AD12
AD13
An on-chip wide-temperature range temperature sensor is integrated. It provides
temperature sensing capability of −40 °C ~ 85 °C. ADC0 is dedicated for the temperature
sensor, and the temperature sensor is measured through Anin03. To get an accurate
temperature value, it is necessary to get supply voltage by measuring the internal
reference voltage V
manual for detailed usage of temperature sensor.
A single input channel can be selected for 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.
A single input channel can be selected for continuous conversion. The results of the
conversions will be sequentially placed in the four result register. The user may select
whether an interrupt can be generated after every four conversions. Additional conversion
results will again cycle through the four result register, overwriting the previous results.
Continuous conversions continue until terminated by the user.
Anin00
Anin01
Anin02
Anin03
Anin10
Anin11
Anin12
Anin13
input MUX
input MUX
All information provided in this document is subject to legal disclaimers.
ref(bg)
Rev. 2 — 1 December 2010
P89LPC9201/9211/922A1/9241/
first. Please see the P89LPC9201/9211/922A1/9241/9251 User
comp
comp
+
–
+
–
DAC0
DAC1
8-bit microcontroller with 8-bit ADC
CCLK
SAR
SAR
8
8
CONTROL
© NXP B.V. 2010. All rights reserved.
LOGIC
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