MC68HC16Z1 Datasheet, PDF (344/500 Pages) Freescale Semiconductor, Inc – M68HC16Z Series

Freescale Semiconductor, Inc.
BUS STATES
PHI1¹
B1 B2 B3 B4 B1 B2 B3 B4 B1 B2 B3 B4 B1 B2 B3 B4
INTERNAL
DATA BUS
PDR
PDRx²
EXTERNAL PIN
(OUTPUT)
CONDITIONED
INPUT
ICx COMPARE
REGISTER
PDDRX
0
$0102
TCNT
$0101
$0102
IMB WRITE CYCLE
IMB WRITE CYCLE
NOTES:
1. PHI1 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.
GENERAL PURPOSE OUTPUT
Figure A-32 General-Purpose Output (Causes Input Capture)
A-60
ELECTRICAL CHARACTERISTICS
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M68HC16 Z SERIES
USER’S MANUAL