LPC2917/01 NXP [NXP Semiconductors], LPC2917/01 Datasheet - Page 36
LPC2917/01
Manufacturer Part Number
LPC2917/01
Description
ARM9 microcontroller with CAN and LIN
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.LPC291701.pdf
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NXP Semiconductors
LPC2917_19_01_2
Preliminary data sheet
6.13.3.1 Pin description
6.14.1 Functional description
6.14 Modulation and sampling control subsystem
Table 21.
[1]
The Modulation and Sampling Control Subsystem (MSCSS) in the LPC2917/2919/01
includes four Pulse-Width Modulators (PWMs), two 10-bit successive approximation
Analog-to-Digital Converters (ADCs) and two timers.
The key features of the MSCSS are:
The MSCSS contains Pulse-Width Modulators (PWMs), Analog-to-Digital Converters
(ADCs) and timers.
Figure 8
communication with the AHB system bus. Two internal timers are dedicated to this
subsystem. MSCSS timer 0 can be used to generate start pulses for the ADCs and the
first PWM. The second timer (MSCSS timer 1) is used to generate ‘carrier’ signals for the
PWMs. These carrier patterns can be used, for example, in applications requiring current
control. Several other trigger possibilities are provided for the ADCs (external, cascaded
or following a PWM). The capture inputs of both timers can also be used to capture the
start pulse of the ADCs.
Symbol
I2C SCL0/1
I2C SDA0/1
•
•
•
•
•
•
•
•
•
•
•
•
Programmable clocks allow versatile rate control.
Bidirectional data transfer between masters and slaves.
Multi-master bus (no central master).
Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus.
Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus.
Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
The I
All I
Note that the pins are not I
Two 10-bit, 400 ksamples/s, 8-channel ADCs with 3.3 V inputs and various trigger-
start options
Four 6-channel PWMs (Pulse-Width Modulators) with capture and trap functionality
Two dedicated timers to schedule and synchronize the PWMs and ADCs
Quadrature encoder interface
2
C-bus controllers support multiple address recognition and a bus monitor mode.
provides an overview of the MSCSS. An AHB-to-APB bus bridge takes care of
2
C-bus can be used for test and diagnostic purposes.
I
2
C-bus pins
Pin name
SCL0/1
SDA0/1
[1]
Rev. 02 — 17 June 2009
2
C-bus compliant open-drain pins.
Direction
I/O
I/O
LPC2917/01; LPC2919/01
Description
I2C clock input/output
I2C data input/output
ARM9 microcontroller with CAN and LIN
© NXP B.V. 2009. All rights reserved.
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