MC68L300 Datasheet, PDF (30/32 Pages) Freescale Semiconductor, Inc – 16.78 MHz Electrical Characteristics

BUS STATES
PHI1^*
Freescale Semiconductor, Inc.
B1 B2 B3 B4 B1 B2 B3 B4 B1 B2 B3 B4 B1 B2 B3 B4
INTERNAL
DATA BUS
PDR
PDRx
EXTERNAL PIN
(OUTPUT)
CONDITIONED
INPUT
ICx COMPARE
REGISTER
PDDRX
0
$0102
TCNT
$0101
$0102
IMB WRITE CYCLE
IMB WRITE CYCLE
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.
Figure 29 General-Purpose Output (Causes Input Capture)
30
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MC68L300EC16/D