Input And Output Pins - Hitachi H8/329 Series Hardware Manual

External
clock source
TMCI
Clock select
TMO
TMRI
Control
logic
Interrupt signals
TCR:
TCSR:
TCORA:
TCORB:
TCNT:

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 TMR0
Timer output TMO
Timer clock input TMCI
Timer reset input TMRI
Internal
clock sources Channel 0
Ø/2
Ø/8
Ø/32
Ø/64
Ø/256
Ø/1024
Clock
Compare-match A
Overflow
Clear
Compare-match B
CMIA
CMIB
OVI
Timer Control Register (8 bits)
Timer Control Status Register (8 bits)
Time Constant Register A (8 bits)
Time Constant Register B (8 bits)
Timer Counter
Figure 7-1. Block Diagram of 8-Bit Timer
Abbreviation
TMR1 I/O
TMO Output
0 1
TMCI Input
0 1
TMRI Input
0 1
Channel 1
Ø/2
Ø/8
Ø/64
Ø/128
Ø/1024
Ø/2048
TCORA
Comparator A
TCNT
Comparator B
TCORB
TCSR
TCR
Function
Output controlled by compare-match
External clock source for the counter
External reset signal for the counter
144
Internal
data bus