30

MC68L300EC16/D

Figure 29 General-Purpose Output (Causes Input Capture)

NOTE: 1.

*PAI1 is the same frequency as the system clock; however, it does not have the same timing.

2.

When the bit value is driven on the pin, the input circuit sees the signal. After it is conditioned it causes the contents of

the TCNT to be latched into the ICx compare register.

$0102

$0101

$0102

IMB WRITE CYCLE

IMB WRITE CYCLE

PHI1*

INTERNAL

DATA BUS

PDR

PDRx

EXTERNAL PIN

(OUTPUT)

CONDITIONED

INPUT

ICx COMPARE

REGISTER

PDDRX

0

TCNT

BUS STATES

B1

B2

B3

B4

B1

B2

B3

B4

B1

B2

B3

B4

B1

B2

B3

B4

Freescale Semiconductor, Inc.

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Go to: www.freescale.com