![NXP Semiconductors LPC43Sxx Скачать руководство пользователя страница 401](http://html1.mh-extra.com/html/nxp-semiconductors/lpc43sxx/lpc43sxx_user-manual_1721827401.webp)
UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
401 of 1441
17.1 How to read this chapter
The following peripherals are not available on all parts, and the corresponding bit values
that select those functions in the SFSP registers are reserved:
•
Ethernet: available on LPC436x/5x/3x, LPC43S6x/S5x/S3x, and
LPC4370/LPC43S70.
•
USB0: available on LPC436x/5x/3x, LPC43S6x/S5x/S3x, and LPC4370/LPC43S70.
•
USB1: available on LPC436x/5x/3x, LPC43S6x/S5x/S3x, and LPC4370/LPC43S70.
•
LCD: available on LPC436x/5x, LPC43S6x/S5x, and LPC4370/LPC43S70.
Remark:
The input channels to the two 10-bit ADCs are tied together for a total of eight
input channels on the following parts:
•
LPC436x/LPC43S6x
•
LPC435x/LPC43S5x
•
LPC433x/LPC43S3x
•
LPC432x/LPC43S2x
•
LPC431x
This means that for the parts with shared input channels, input ADC0_n is connected to
channel n on ADC0 and ADC1 and input ADC1_n is connected to channel n on ADC0 and
ADC1, See
. In addition, the DAC output is shared with both,
ADC0 channel 0 (ADC0_0) and ADC1 channel 0 (ADC1_0). For details on the 10-bit ADC
pinning, see
.
Each 10-bit ADC has eight independent input channels for a total of 16 input channels on
the following parts:
•
LPC4370
17.2 Basic configuration
The SCU is configured as follows:
•
See
for clocking and power control.
•
The SCU is reset by the SCU_RST (reset # 9).
Remark:
Before using any of the multiplexed pins or the I2C0 pins
as inputs
, set the
corresponding pin configuration registers as follows:
•
Enable the input buffer by setting bit EZI to 1.
•
For high-frequency signals, disable the input glitch filter by setting bit ZIF to 1.
UM10503
Chapter 17: LPC43xx/LPC43Sxx System Control Unit (SCU)/
IO configuration
Rev. 2.1 — 10 December 2015
User manual