LPC2917 datasheet(31/68 Pages) PHILIPS

31 / 68 page

LPC2917_19_1

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. Table 19

shows the LIN pins. For more information see Ref. 1 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.

Figure 7 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

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