MC68HC705E5 Datasheet, PDF (56/148 Pages) Freescale Semiconductor, Inc – General Release Specification

Timer
Freescale Semiconductor, Inc.
88
TCR
MC68HC05E4 INTERNAL BUS
$09 TCR
TIMER COUNTER REGISTER (TCR)
f_op/2¹⁰
7-BIT COUNTER
f_op/2²
INTERNAL
f_op
PROCESSOR
CLOCK
÷4
RTI SELECT CIRCUIT
OVERFLOW
DETECT
CIRCUIT
POR
TCBP
TCSR
$08 TCSR
TIMER CONTROL & STATUS REGISTER
TOF RTIF TOFE RTIE TOFA RTIFA RT1 RT0
INTERRUPT CIRCUIT
TO INTERRUPT
LOGIC
Figure 8-1. Timer Block Diagram
General Release Specification
Timer
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MC68HC705E5 — Rev. 1.0