Pin Description; Register Description; User Manual - Philips LPC2101 User Manual

Philips Semiconductors
Volume 1
Two match registers can be used to provide a single edge controlled PWM output on the
MATn.2.0 pins. Because the MAT0.3 register is not pinned out on Timer0, it is
recommended to use the MRn.3 registers to control the PWM cycle length. One other
match register is needed to control the PWM edge position. The remaining two match
registers can be used to create PWM output with the PWM cycle rate determined by
MRn.3.

15.4 Pin description

Table 164
Table 164: Timer/Counter pin description
Pin
CAP0.2.0
CAP1.3.0
MAT0.2.0
MAT1.3.0

15.5 Register description

Each Timer/Counter contains the registers shown in
follow.

User manual

gives a brief summary of each of the Timer/Counter related pins.
Type Description
Input Capture Signals- A transition on a capture pin can be configured to
load one of the Capture Registers with the value in the Timer Counter
and optionally generate an interrupt.
Here is the list of all CAPTURE signals, together with pins on where
they can be selected:
•
CAP0.0: P0.2
•
CAP0.1: P0.4
•
CAP0.2: P0.6
•
CAP1.0: P0.10
•
CAP1.1: P0.11
•
CAP1.2: P0.17
•
CAP1.3: P0.18
Timer/Counter block can select a capture signal as a clock source
instead of the PCLK derived clock. For more details see
"Count Control Register (CTCR, TIMER0: T0CTCR - 0xE000 4070
and TIMER1: T1TCR - 0xE000 8070)" on page
Output External Match Output 0/1- When a match register 0/1 (MR3:0) equals
the timer counter (TC), this output can either toggle, go LOW, go
HIGH, or do nothing. The External Match Register (EMR) and the
PWM Control register (PWMCON) control the functionality of this
output.
Here is the list of all MATCH signals together with pins on where they
can be selected:
•
MAT0.0: P0.3
•
MAT0.1: P0.5
•
MAT0.2: P0.16
•
MAT1.0: P0.12
•
MAT1.1: P0.13
•
MAT1.2: P0.19
•
MAT1.3: P0.20
Rev. 01 — 12 January 2006
UM10161
Chapter 15: Timer0 and Timer1
Section 15.5.3
191.
Table 165. More detailed descriptions
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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