HD6475348R Datasheet, PDF (201/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

10.1.2 Block Diagram
Figure 10-1 shows a block diagram of one free-running timer channel.
External clock
FTCI
Clock select
FTOA
FTOB
FTI
Control
logic
Internal clock
ø/4
ø/8
ø/32
Clock
Compare-match A
Overflow
Clear
Compare-match B
Capture
OCRA
Comparator A
FRC
Comparator B
OCRB
ICR
Module
data
bus
TCSR
ICI
OCIA
OCIB
FOVI
Interrupt signals
TCR
OCRA: Output Compare Register A
OCRB: Output Compare Register B
FRC: Free Running Counter
ICR: Input Capture Register
TCSR: Timer Control/Status Register
TCR: Timer Control Register
Figure 10-1 Block Diagram of 16-Bit Free-Running Timer
Internal
data bus
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