Nxp Semiconductors LPC2917 ユーザーズマニュアル

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LPC2917_19_1
© NXP B.V. 2007. All rights reserved.
Preliminary data sheet
Rev. 1.01 — 15 November 2007 
31 of 68
NXP Semiconductors
LPC2917/19
ARM9 microcontroller with CAN and LIN
Complete LIN 2.0 message handling and transfer
One interrupt per LIN message
Slave response time-out detection
Programmable sync-break length
Automatic sync-field and sync-break generation
Programmable inter-byte space
Hardware or software parity generation
Automatic checksum generation
Fault confinement
Fractional baud-rate generator
8.6.2 LIN pin description
The two LIN 2.0 master controllers in the LPC2917/19 have the pins listed below. The LIN 
pins are combined with other functions on the port pins of the LPC2917/19. 
 
shows the LIN pins. For more information see 
 subsection 3.43, LIN master 
controller.
 
8.7 Modulation and sampling control subsystem
8.7.1 Overview
The Modulation and Sampling Control Subsystem (MSCSS) in the LPC2917/19 includes 
four Pulse-Width Modulators (PWMs), three10-bit successive approximation 
Analog-to-Digital Converters (ADCs) and two timers.
The key features of the MSCSS are:
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
8.7.2 Description
The MSCSS contains Pulse-Width Modulators (PWMs), Analog-to-Digital Converters 
(ADCs) and timers.
 provides an overview of the MSCSS. An AHB-to-VPB bus bridge takes care of 
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 
Table 19.
LIN controller pins
Symbol
Direction
Description
LIN0/1 TXDL out
LIN channel 0/1 transmit data output
LIN0/1 RXDL in
LIN channel 0/1 receive data input