Freescale Semiconductor, Inc.
Capture/Compare Timer
EDGE
SELECT/
DETECT
LOGIC
TCAP
ICRH ($0014)
TRH ($0018)
ICRL ($0015)
TRL ($0019)
ATRH ($001A)
ATRL ($001B)
÷ 4
INTERNAL CLOCK (XTAL ÷ 2)
16-BIT COUNTER
PIN
CONTROL
LOGIC
16-BIT COMPARATOR
TCMP
OCRH ($0016)
OCRL ($0017)
TIMER
INTERRUPT
REQUEST
$0012
TIMER CONTROL REGISTER
TIMER STATUS REGISTER
$0013
INTERNAL DATA BUS
Figure 8-1. Timer Block Diagram
Technical Data
90
MC68HC705C8A — Rev. 3
Capture/Compare Timer
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