Datasheet

Section 9 Timers
Rev. 6.00 Aug 04, 2006 page 321 of 680
REJ09B0145-0600
2. Block Diagram
Figure 9.19 shows a block diagram of the asynchronous event counter.
ECCSR
ECH
ECL
IRREC
Internal data bus
OVL
OVH
CK
CK
AEVL
AEVH
: Event counter control/status register
: Event counter H
: Event counter L
: Asynchronous event input H
: Asynchronous event input L
: Event counter overflow interrupt request flag
Legend:
ECCSR
ECH
ECL
AEVH
AEVL
IRREC
Figure 9.19 Block Diagram of Asynchronous Event Counter
3. Pin Configuration
Table 9.19 shows the asynchronous event counter pin configuration.
Table 9.19 Pin Configuration
Name Abbr. I/O Function
Asynchronous event input H AEVH Input Event input pin for input to event counter H
Asynchronous event input L AEVL Input Event input pin for input to event counter L