E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 596
![no-image](/images/manufacturer_photos/0/5/560/renesas_electronics_america_sml.jpg)
E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 596 of 1093
- Download datasheet (6Mb)
Section 12 8-Bit Timers
12.6.4
If compare match events A and B occur at the same time, the 8-bit timer operates in accordance
with the priorities for the output statuses set for compare match A and compare match B, as shown
in table 12.4.
Table 12.4 Timer Output Priorities
Output Setting
Toggle output
1 output
0 output
No change
12.6.5
TCNT may increment erroneously when the internal clock is switched over. Table 12.5 shows the
relationship between the timing at which the internal clock is switched (by writing to the CKS1
and CKS0 bits) and the TCNT operation.
When the TCNT clock is generated from an internal clock, the falling edge of the internal clock
pulse is detected. If clock switching causes a change from high to low level, as shown in case 3 in
table 12.5, a TCNT clock pulse is generated on the assumption that the switchover is a falling
edge. This increments TCNT.
The erroneous incrementation can also happen when switching between internal and external
clocks.
Rev. 5.00 Sep 14, 2006 page 566 of 1060
REJ09B0331-0500
Contention between Compare Matches A and B
Switching of Internal Clocks and TCNT Operation
Priority
High
Low
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