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Chapter17 timers, Chapter 17, Timers – Motorola MPC8260 User Manual

Page 515: Timer block diagram -1, Chapter 17, òtimers, Chapter 17 timers

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MOTOROLA

Chapter 17. Timers

17-1

Chapter 17
Timers

170

170

The CPM includes four identical 16-bit general-purpose timers or two 32-bit timers. Each
general-purpose timer consists of a timer mode register (TMR), a timer capture register
(TCR), a timer counter (TCN), a timer reference register (TRR), a timer event register
(TER), and a timer global conÞguration register (TGCR). The TMRs contain the prescaler
values programmed by the user.

Figure 17-1 shows the timer block diagram.

Figure 17-1. Timer Block Diagram

Pin assignments for TINx, TGATEx, and TOUTx are described in Section 35.5, ÒPorts
Tables.
Ó

Timer

Capture

Detection

Timer Event Register

Mode Register

Mode Bits

Prescaler

Timer Counter (TCN)

Capture Register

Reference Register

Divider

Clock

TER1

TMR1

TCN1

TRR1

TCR1

General

TIN1

TOUT1

Timer1

Timer2

Timer3

Timer4

Global Configuration Register

TGATE1

TGATE2

TGCR

TIN2

TIN3
TIN4

TOUT2

TOUT3

TOUT4

System Clock

Clock

Generator