LPC2921 datasheet(33/83 Pages) NXP

33 / 83 page

LPC2921_23_25_1

Preliminary data sheet

Rev. 01 — 15 June 2009

33 of 83

NXP Semiconductors

LPC2921/2923/2925

ARM9 microcontroller with CAN, LIN, and USB

6.14.2 Pin description

The pins of the LPC2921/2923/2925 MSCSS associated with the two ADC modules are

described in Section 6.14.4.2. Pins connected to the four PWM modules are described in

Section 6.14.5.4, pins directly connected to the MSCSS timer 1 module are described in

Section 6.14.6.1, and pins connected to the quadrature encoder interface are described in

Section 6.14.7.1.

Fig 5.

Modulation and Sampling Control Sub System (MSCSS) block diagram

002aae248

PWM0 MAT[5:0]

PWM1 MAT[5:0]

PWM2 MAT[5:0]

PWM3 MAT[5:0]

PWM0 CAP[2:0]

PAUSE

MSCSS

TIMER0

MSCSS

TIMER1

ADC1

ADC2

PWM0

PWM1

ADC1 IN[7:0]

ADC2 IN[7:0]

ADC2 EXT START

QEI

PWM1 CAP[2:0]

PWM2 TRAP

PWM2 CAP[2:0]

PWM3 TRAP

PWM3 CAP[2:0]

start

synch

PWM2

synch

PWM3

synch

carrier

PHA0

PHB0

MSCSS

AHB-TO-APB BRIDGE

capture

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