DF2266TF13V Renesas Electronics America, DF2266TF13V Datasheet - Page 330
DF2266TF13V
Manufacturer Part Number
DF2266TF13V
Description
IC H8S/2266 MCU FLASH 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2266TF20V.pdf
(712 pages)
Specifications of DF2266TF13V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
13MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
67
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Section 11 8-Bit Timers
11.8.6
TCNT may increment erroneously when the internal clock is switched over. Table 11.4 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 no. 3 in
table 11.4, a TCNT clock pulse is generated on the assumption that the switchover is a falling
edge. This increments TCNT.
Erroneous incrementation can also happen when switching between internal and external clocks.
Table 11.4 Switching of Internal Clock and TCNT Operation
Rev. 5.00 Sep. 01, 2009 Page 278 of 656
REJ09B0071-0500
No.
1
2
Timing of Switchover
by Means of CKS1 and
CKS0 Bits
Switching from low to
low *
Switching from low to
high *
Switching of Internal Clocks and TCNT Operation
1
2
TCNT Clock Operation
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
Clock before
switchover
Clock after
switchover
TCNT clock
TCNT
N
N
CKS bit rewrite
N + 1
CKS bit rewrite
N + 1
N + 2
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