HD6433308 Datasheet, PDF (168/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

External
clock source
TMCI
Clock select
Internal
clock sources
Ø/8
Ø/64
Ø/1024
Clock
Compare-
match A
TMO
TMRI
Overflow
Clear
Control
logic
Compare-
match B
TCORA
Comparator A
TCNT
Comparator B
TCORB
Internal
data bus
TCSR
TCR
CMIA
CMIB
OVI
Interrupt signals
TCR: Timer Control Register (8 bits)
TCSR: Timer Control Status Register (8 bits)
TCORA: Time Constant Register A (8 bits)
TCORB: Time Constant Register B (8 bits)
TCNT: Timer Counter
Figure 7-1. Block Diagram of 8-Bit Timer
7.1.3 Input and Output Pins
Table 7-1 lists the input and output pins of the 8-bit timer.
Table 7-1. Input and Output Pins of 8-Bit Timer
Name
Timer output
Timer clock input
Timer reset input
Abbreviation
TMR0 TMR1
TMO0 TMO1
TMCI0 TMCI1
TMRI0 TMRI1
I/O
Output
Input
Input
Function
Output controlled by compare-match
External clock source for the counter
External reset signal for the counter
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