HD64F3664FY Renesas Electronics America, HD64F3664FY Datasheet - Page 218
HD64F3664FY
Manufacturer Part Number
HD64F3664FY
Description
IC H8 MCU FLASH 32K 48QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.US3664-BAG1.pdf
(446 pages)
Specifications of HD64F3664FY
Core Processor
H8/300H
Core Size
16-Bit
Speed
16MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
29
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
48-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Section 12 Timer W
5. The TOA to TOD bits in TCRW decide the value of the FTIO pin, which is output until the
Rev. 6.00 Mar. 24, 2006 Page 188 of 412
REJ09B0142-0600
first compare match occurs. Once a compare match occurs and this compare match changes the
values of FTIOA to FTIOD output, the values of the FTIOA to FTIOD pin output and the
values read from the TOA to TOD bits may differ. Moreover, when the writing to TCRW and
the generation of the compare match A to D occur at the same timing, the writing to TCRW
has the priority. Thus, output change due to the compare match is not reflected to the FTIOA
to FTIOD pins. Therefore, when bit manipulation instruction is used to write to TCRW, the
values of the FTIOA to FTIOD pin output may result in an unexpected result. When TCRW is
to be written to while compare match is operating, stop the counter once before accessing to
TCRW, read the port 8 state to reflect the values of FTIOA to FTIOD output, to TOA to TOD,
and then restart the counter. Figure 12.26 shows an example when the compare match and the
bit manipulation instruction to TCRW occur at the same timing.
Figure 12.25 Internal Clock Switching and TCNT Operation
Previous clock
New clock
Count clock
TCNT
N
The change in signal level at clock switching is
assumed to be a rising edge, and TCNT
increments the count.
N+1
N+2
N+3
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